Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity

v3.8.0.1
Stockholders' Equity
12 Months Ended
Dec. 31, 2017
Equity [Abstract]  
Stockholders' Equity

13.       Stockholders’ Equity

 

Authorized capital

 

The authorized capital stock of the Company consists of 50,000,000 shares of common stock, par value $0.001 per share. In the event of liquidation of the company, dissolution or winding up, the holders of common stock are entitled to share ratably in all assets remaining after payment of liabilities. The common stock has no preemptive or conversion rights or other subscription rights. There are no redemption or sinking fund provisions applicable to the common stock. The outstanding shares of common stock are fully paid and non-assessable.

 

The holders of the Company’s common stock are entitled to one vote per share. Holders of common stock are entitled to receive a ratable share of dividends, if any, as may be declared by the board of directors.  

 

On June 24, 2015, the Company had a reverse stock split whereby each share of issued common stock was converted into 0.91 shares of common stock of the Company. All share and per share amounts in the period preceding the stock split have been adjusted to reflect the split retroactively.

 

On June 9, 2015, the Company filed a registration statement on form S-1 with the Securities and Exchange Commission. The registration was for the sale of 6,600,000 shares of common stock to raise proceeds of $33,000,000 at an issue price of $5.00 per share. On July 31, 2015, the common shares of the Company began trading on the NASDAQ capital markets. On July 31, 2015, the Company sold 6,600,000 shares of common stock for $33,000,000 less commissions of $2,525,000 and expenses of $577,000 for net proceeds of $29,898,000. The form S-1 included an over-allotment option of 990,000 common shares. On August 13, 2015, the Company sold 641,930 shares of the over-allotment option for $3,210,000 less commissions of $246,000 for net proceeds of $2,964,000.

 

On November 2, 2015, the Company issued 20,000 shares of common stock to Insight Capital Consultants Corporation for work performed for the Company.

 

Interstate Battery Agreements

 

Investment Agreement

 

The Company entered into a Credit Agreement dated May 18, 2016 with Interstate Battery pursuant to which Interstate Battery loaned the Company $5,000,000 in consideration of the Company’s issuance of a secured convertible promissory note in the original principal amount of $5,000,000. The note bears interest at the rate of eleven percent (11%) per annum, compounding monthly, and all interest is payable upon the earlier of maturity or conversion of the principal amount. The loan matures on May 24, 2019. The outstanding principal is convertible into shares of the Company’s common stock at a conversion price of $7.12 per share. The Company’s obligations under the note and Credit Agreement are secured by a second priority lien on the real estate, fixtures and equipment at the Company’s recycling facility at McCarran, Nevada. The Credit Agreement includes representations, warranties, and affirmative and negative covenants that are customary of institutional credit agreements. As of the date of this report, Interstate Battery has raised a claim that the Company is in technical breach of a negative covenant under loan. The claimed breach relates to the Company’s failure to obtain Interstate Battery’s prior written consent to the Company’s acquisition of Ebonex IPR, Ltd. In the event the Company is unable to resolve this matter, Interstate Battery may declare a default under the loan and attempt to accelerate the payment of all amounts thereunder. There can be no assurance the Company will be able to resolve this matter or that Interstate Battery will not declare a default under the loan and attempt to accelerate the payment of all amounts thereunder. The Company estimates that resolving the claim will result in a charge of $0.6 million. The Company has recorded the $0.6 million in general and administrative expenses as of December 31, 2017 with the offset in accrued liabilities.

 

Pursuant to the Credit Agreement, the Company also issued to Interstate Battery two common stock purchase warrants, including:

 

  a warrant to purchase 702,247 shares of the Company’s common stock, at an exercise price of $7.12 per share, that is exercisable upon grant and expires on May 24, 2018; and

 

  a warrant to purchase 1,605,131 shares of the Company’s common stock, at an exercise price of $9.00 per share, that is exercisable commencing November 24, 2016 and expires on May 24, 2019.

 

The warrants contain cashless exercise and standard anti-dilution adjustment provisions. If Interstate converts its convertible note and exercises both warrants in their entirety, it will own approximately 11.4% of the Company’s common stock at an average price per share of approximately $7.93.

 

The Company also entered into a Stock Purchase Agreement dated May 18, 2016 with Interstate Battery pursuant to which the Company issued and sold to Interstate Battery 702,247 shares of the Company’s common stock at $7.12 per share for gross proceeds of approximately $5,000,000. The Stock Purchase Agreement includes customary representations, warranties, and covenants by Interstate Battery and us, and an indemnity from us in favor of Interstate Battery.

 

In connection with the investment transactions, the Company also entered into an Investors Rights Agreement dated May 18, 2016 with Interstate Battery pursuant to which the Company granted Interstate Battery customary demand and piggyback registration rights, limited board observation rights over the next three years and limited preemptive rights allowing Interstate Battery the right to purchase its proportional share of certain future equity issuances by the Company over the next three years. The Company included all of the Interstate Battery shares in its S-3 Registration Statement filed with the Securities and Exchange Commission on August 1, 2016.

 

The investment transactions with Interstate Battery closed on May 24, 2016. There were no sales commissions paid by the Company in connection with its sale of securities to Interstate Battery.

 

The Company allocated the $10.0 million proceeds from the Credit Agreement and Stock Purchase Agreement, to the various securities based on their relative fair values on the closing date of May 24, 2016.

 

  The fair value of the note was calculated using an average of the Merrill Lynch US High Yield CCC rate of 16.21% on May 24, 2016 and the Merrill Lynch US High Yield B effective yield of 7.44% on May 24, 2016.

 

  The fair value of the common stock was based on the closing market price of the Company’s common stock on the NASDAQ stock market on May 24, 2016.

 

The fair value of the warrants using the Black-Scholes-Merton Option Pricing Model and the assumptions are listed in the table below (FV of warrant in thousands).

 

    Warrant #1     Warrant #2  
Warrant shares issued     702,247       1,605,131  
Market price   $ 11.39     $ 11.39  
Exercise price   $ 7.12     $ 9.00  
Term (years)     2       3  
Risk-free interest rate     0.91 %     1.05 %
Volatility     65.70 %     67.80 %
Dividend rate     0 %     0 %
Per share FV of warrant   $ 5.89     $ 5.89  
FV of warrant   $ 4,136     $ 9,450  

 

Both warrants were issued on May 24, 2016, when the closing market price of the Company’s stock was $11.39.

 

The table below presents the allocation of the proceeds based on the relative fair values of the stock, warrants and note (in thousands).

 

    Fair value     Allocated value  
             
Allocation of Proceeds                
Convertible note   $ 4,879     $ 1,844  
Warrants     13,586       5,134  
Common stock     7,998       3,022  
                 
    $ 26,463     $ 10,000  

 

The difference between the face value of the convertible note and the allocated amount (which considers both the allocated fair value of the issued stock and allocated fair value of the warrants) was recorded as an initial discount to the convertible note; common stock was recorded at its allocated fair value as a credit to par value and additional paid-in capital as appropriate, based on the number of shares issued, and the allocated fair value of the warrant was credited to additional paid-in capital. After taking into consideration the amortization of the note discount, the effective interest rate on the convertible note is 184.75%.

 

The convertible note includes an embedded BCF. The intrinsic value of the BCF was treated as an additional component of the discount attributable to the convertible note. The initial discount (attributable to the stock and warrants as noted above) and the discount attributable to the BCF exceeds the face amount of the convertible note. To avoid reducing the initial net carrying value of the convertible note to or below zero, the discount attributable to the BCF was limited such that the aggregate of all discounts does not exceed 99.5% of the face amount of the convertible note. The discount is being accreted to interest expense using the effective interest method over the three-year life of the loan. If the loan is converted prior to its maturity, any remaining discount will be expensed immediately.

 

Costs incurred in connection with the deal of $771,000 were allocated between additional paid-in capital and prepaid financing/ debt discount (“debt issuance costs”) in the same manner as the above allocation of proceeds. The allocated debt issuance costs of $142,000 were recorded as a reduction to the carrying amount of the convertible note and are being amortized as interest expense within the condensed consolidated statements of operations over the three-year life of the loan. The remaining $629,000 was recorded as a reduction to additional paid-in capital.

 

National Securities Placement

 

On May 18, 2016, the Company entered into a Stock Purchase Agreement and a Registration Rights Agreement with certain accredited investors pursuant to which the Company issued and sold to the investors 719,333 shares of its common stock at a price of $7.12 per share for the gross proceeds of approximately $5,122,000. The Stock Purchase Agreement includes customary representations, warranties, and covenants by the investors and the Company, and an indemnity from the Company in favor of the investors. The private placement closed on May 24, 2016. The Company included all of these shares in its S-3 Registration Statement filed with the Securities and Exchange Commission on August 1, 2016.

 

National Securities Corporation acted as placement agent for the private placement and received sales commission in the amount of six percent (6%) of the gross proceeds, or a total of $307,000 in commissions from us. In addition, we reimbursed National Securities for its out-of-pocket expenses and legal fees in the aggregate amount of $38,000. The total costs of $345,000 have been recorded as a reduction to additional paid-in capital.

 

2016 Public Offering

 

On November 21, 2016, the Company completed a public offering of 2.3 million shares of its common stock at a public offering price of $10.00 per share. Net proceeds to the Company from the public offering were approximately $21.5 million after deducting underwriting discounts, commissions and offering expenses. In connection with the public offering, the underwriter received a fee of $1.4 million and a warrant to purchase 33,450 shares of the Company’s common stock at $10.00 per share that is exercisable commencing May 20, 2017 and expires on November 21, 2019. The fair value of the warrant, $229,000, was recorded as an increase to offering expenses and an increase to additional paid-in capital. The Company calculated the fair value of the warrant using a BlackScholes Merton model with the assumptions as follows: $12.66 closing market value on the date of grant; 3-year term; 72% volatility; 1.36 discount rate and 0% annual dividend rate.

 

Johnson Controls Agreement

 

On February 7, 2017, the Company entered into a Stock Purchase Agreement with Johnson Controls pursuant to which the Company issued and sold to a wholly-owned subsidiary of Johnson Controls International plc, (“Johnson Controls”), 939,005 shares of its common stock at $11.33 per share for the gross proceeds of approximately $10.6 million. Costs incurred in connection with the transaction, primarily legal fees, totaled approximately $167,000. The Stock Purchase Agreement includes customary representations, warranties, and covenants by Johnson Controls and the Company, and an indemnity from the Company in favor of Johnson Controls.

 

In connection with the investment transactions, the Company also entered into an Investors Rights Agreement dated February 7, 2017 with Johnson Controls pursuant to which the Company granted Johnson Controls customary demand and piggyback registration rights, limited board observation rights and limited preemptive rights allowing Johnson Controls the right to purchase its proportional share of certain future equity issuances by the Company. The board observation and preemptive rights shall expire on the earlier of (i) such time as Johnson Controls no longer owns 50% of the acquired shares or (ii) the termination of both the Tolling/Lead Purchase Agreement and Equipment Supply Agreement.  

 

There were no sales commissions paid by the Company in connection with the sale of its common shares to Johnson Controls.

 

2017 Public Offering

 

On December 12, 2017, the Company completed a public offering of 7,150,000 shares of its common stock at a public offering price of $2.10 per share. Net proceeds to the Company from the public offering were approximately $13.8 million after deducting underwriting discounts, commissions and offering expenses. In January 2018, the underwriter exercised their overallotment option resulting in an additional 1,072,500 shares being issued and net proceeds of approximately $2.1 million.

 

Warrants issued

 

On September 8, 2014, the Company entered into a consulting agreement with Liquid Patent Consulting, LLC (“LPC”), pursuant to which LPC agreed to provide management, strategic and intellectual property advisory services. The Consulting Agreement had an initial term of 180 days after which it will continue in effect until it is terminated by either party with 30 days written notice to the other party.

 

As consideration for services provided under the Consulting Agreement the Company issued warrants (“Consulting Warrants”) to LPC for the purchase of an aggregate of 436,364 shares of the Company’s common stock. LPC subsequently transferred a portion of the Consulting Warrants to a third party. The Consulting Warrants vested upon issue, have a term of three years, an exercise price of $0.0034375 per share and are immediately exercisable, provided that upon the Company’s consummation of an IPO, the Consulting Warrants may not be exercised until 90 days after the consummation of the IPO. The Consulting Warrants may be exercised on a cashless basis. All of these warrants were exercised during 2017.

 

In connection with underwriting the IPO, the Company issued on August 5, 2015 to NSC warrants (“IPO Warrants”) to purchase 660,000 shares of the Company’s common stock at an exercise price of $6.00 per share. The IPO Warrants were fully vested upon issuance, are not exercisable until July 30, 2016 and have a term of five years. The registration statement with the Securities and Exchange Commission included an over-allotment of shares available for sale in addition to the IPO. On August 13, 2015, the Company issued warrants to NSC (“O-A Warrants”) to purchase 64,193 shares of the Company’s common stock at an exercise price of $6.00 per share for underwriting the over-allotment sale of shares. The O-A Warrants were fully vested upon issuance, are not exercisable until July 30, 2016 and have a term of five years. The fair values were recorded as an increase to IPO costs and an increase to additional paid in capital. All of these warrants were exercised during 2017.

 

On October 31, 2015, the Company issued warrants to a consultant to purchase 12,500 shares of the Company’s common stock at an exercise price of $6.00 per share. The warrants were fully vested on issuance and expire on July 30, 2018. The fair value of the warrants, calculated by the Black-Scholes-Merton method, $28,000 was recorded to business development and management costs and additional paid in capital in 2015. All of these warrants were exercised during 2017.

 

On November 2, 2015, the Company issued warrants to a consultant to purchase 30,000 shares of the Company’s common stock at an exercise price of $6.00. The warrants were fully vested upon issuance and have a term of one year. The fair value of the warrants, calculated by the Black-Scholes-Merton method, $36,000 was recorded to business development and management costs and additional paid in capital in 2015. All of these warrants were exercised during 2016.

 

Provided below are the principal assumptions used in the measurement of the fair values of the warrants issued during 2014 and 2015 (Warrants fair value in thousands).

 

    Consulting
09/08/14
    IPO
08/05/15
    O-A
08/13/15
    Consulting
10/31/15
    Consulting
11/02/15
 
Fair market value of shares   $ 1.64     $ 5.00     $ 5.36     $ 5.00     $ 4.89  
Assumed exercise price   $ 0.0034375     $ 6.00     $ 6.00     $ 6.00     $ 6.00  
Term in years     3       5       5       2.75       1  
Volatility     80 %     80 %     80 %     80 %     80 %
Annual rate of dividends     0 %     0 %     0 %     0 %     0 %
Discount rate     1.02 %     1.64 %     1.57 %     1.26 %     1.26 %
Call option value   $ 1.49     $ 3.05     $ 3.34     $ 2.28     $ 1.21  
Warrant shares issued     436,364       660,000       64,193       12,500       30,000  
Warrants fair value   $ 714     $ 2,014     $ 214     $ 28     $ 36  

 

Warrants to purchase 12,500 of the Company’s common stock were issued on January 31, 2016, April 30, 2016 and July 31, 2016, all with an exercise price of $6.00 per share. The warrants were fully vested upon issuance and expire, if not exercised, on July 31, 2018. All of these warrants were exercised during 2017.  

 

The following assumptions were used in the Black-Scholes-Merton pricing model to estimate the fair value of the warrants (FV of warrants in thousands).

 

    1/31/2016     4/30/2016     7/31/2016  
Warrant shares issued     12,500       12,500       12,500  
Market price   $ 4.63     $ 8.37     $ 9.31  
Exercise price   $ 6.00     $ 6.00     $ 6.00  
Term (years)     1.25       2.25       2.00  
Risk-free interest rate     0.97 %     0.77 %     0.72 %
Volatility     80.00 %     80.00 %     80.00 %
Dividend rate     0 %     0 %     0 %
Per share FV of warrant   $ 1.24     $ 4.58     $ 5.19  
FV of warrant   $ 16     $ 57     $ 65  

 

The fair value of each of the warrants was recorded as increase to business development and management costs and increase in additional paid in-capital.

 

As noted in the preceding section, warrants to purchase 2,305,378 and 33,450 shares of the Company’s common stock were also issued for the Interstate Battery deal and the November 2016 Public Offering, respectively, during 2016. Please refer to the above section for specific valuation assumptions for these warrants.

  

Warrants exercised

 

On June 7, 2016, when the five-day average of closing prices for the Company’s common stock was $12.16 per share, 15,203 shares of the Company’s common stock were issued pursuant to a cashless exercise of a warrant for 30,000 shares of the Company’s common stock with an exercise price of $6.00 per share.

 

During the year ended December 31, 2017, 1,175,796 shares were issued pursuant to cash and cashless warrant exercises as detailed below. Generally, the warrants specify using the preceding five-day average of closing prices for the Company’s common stock in the calculation of common stock to be issued pursuant to a cashless exercise.

 

Date of     Average Closing           Warrant     Common  
Warrant     Market Price     Exercise Price     Shares     Shares  
Exercise     Per Share     Per Share     Exercised     Issued  
                           
  2/10/2017     $ 11.016     $ 0.0034375       392,728       392,605  
  2/13/2017     $ 13.062     $ 3.00       25,119       19,349  
  2/13/2017     $ 13.062     $ 6.00       72,420       39,154  
  2/15/2017     $ 16.768     $ 6.00       65,177       41,856  
  2/16/2017     $ 16.768     $ 6.00       35,000       22,470  
  3/17/2017     $ 20.262     $ 6.00       2,500       2,500  
  3/20/2017     $ 20.304     $ 3.00       226,068       192,666  
  3/20/2017     $ 20.304     $ 6.00       586,596       413,253  
  4/3/2017     $ 19.148     $ 0.0034375       43,636       43,628  
  4/11/2017     $ 17.920     $ 6.00       12,500       8,315  
                                     
                          1,461,744       1,175,796  

 

Warrants outstanding

 

Warrants to purchase shares of the Company’s common stock at a weighted average exercise price of $8.45 per share are as follows.

 

Exercise Price     Expiration     Shares Subject to purchase  
per Share     Date     at September 30, 2017  
               
$ 7.12       5/18/2018       702,247  
$ 9.00       5/18/2019       1,605,131  
$ 10.00       11/21/2019       33,450  
                     
                  2,340,828  

 

Stock based compensation

 

In 2014, the Board of Directors adopted the Company’s stock incentive plan (the “2014 Plan”). The 2014 Plan was most recently amended and restated effective as of the Company’s 2017 Annual Stockholders’ Meeting. A total of 2,113,637 shares of common stock was authorized for issuance pursuant to the 2014 Plan at the time of its most recent amendment and restatement in 2017. The 2014 Plan provides for the following types of stock-based awards: incentive stock options; non-statutory stock options; restricted stock; and performance stock. The 2014 Plan, under which equity incentives may be granted to employees and directors under incentive and non-statutory agreements, requires that the option price may not be less than the fair value of the stock at the date the option is granted. Option awards are exercisable until their expiration, which may not exceed 10 years from the grant date.

 

The stock-based compensation expense recorded was allocated as follows (in thousands):

 

    Year ended December 31,  
    2017     2016     2015  
Cost of product sales   $ 143     $     $  
Research and development cost     456       256       119  
General and administrative expense     482       804       182  
Total   $ 1,081     $ 1,060     $ 301  

 

The following assumptions were used in the Black-Scholes-Merton option pricing model to estimate the fair value of the awards granted during the year ended December 31, 2017, 2016 and 2015.

 

    Year ended December 31,  
    2017     2016     2015  
                   
Expected stock volatility     70.5% - 73.2 %     71%-80 %     80 %
Risk free interest rate     1.38% - 2.03 %     0.92%-1.77 %     1.32%-1.75 %
Expected years until exercise     2.5-3.5       2.5-4.0       3.4-3.5  
Dividend yield     0 %     0 %     0 %

 

The risk-free interest rate assumption was based on the United States Treasury’s zero-coupon bonds with maturities similar to those of the expected term of the award being valued. The assumed dividend yield was based on the Company’s expectation of not paying dividends in the foreseeable future. The weighted-average expected life of the options was calculated using the simplified method as prescribed by the Securities and Exchange Commission (“SEC”) Staff Accounting Bulletin No. 107 and No. 110 (“SAB No. 107 and 110”). This decision was based on the lack of relevant historical data due to the Company’s limited historical experience. In addition, due to the Company’s limited historical data, the estimated volatility also reflects the application of SAB No. 107 and 110, using the weighted average of the Company’s historical volatility and the historical volatility of several unrelated public companies within the recycling industry. Forfeitures are recognized as they occur.

 

The following table summarizes the 2014 Plan activity and related information through December 31, 2017.

 

            Options Outstanding     RSU’s outstanding  
      Number of
Shares
Available for
Grant
    Number of Shares     Weighted-
Average
Exercise
Price Per
Share ($)
    Number of
RSU’s
    Weighted-
Average
Grant Date
Fair Value
Per Share
($)
 
Balance at December 31, 2015       611,313       752,324     $ 3.95           $  
Granted       (229,497 )     229,497       8.56              
Exercised             (4,500 )     4.18              
Forfeited       61,749       (61,749 )     6.14              
Balance at December 31, 2016       443,565       915,572       4.96              
Authorized       750,000                                  
Granted       (330,884 )     134,933       11.19       195,951       7.28  
Exercised             (284,370 )     3.77              
Forfeited       202,322       (187,322 )     6.44       (15,000 )     5.78  
Balance at December 31, 2017       1,065,003       578,813     $ 6.51       180,951     $ 7.40  
                                             

The weighted-average grant-date fair value of options granted during the year ended December 31, 2017, 2016 and 2015 was $5.55, $4.47 and $2.20 per share, respectively. The intrinsic value of options exercised during the year ended December 31, 2017 and 2016 was $1.5 million and $22,000, respectively. There were no stock option exercises during the year ended December 31, 2015. The amount of cash received from exercise of stock options during the year ended December 31, 2017 was $1.1 million.

 

Additional information related to the status of options at December 31, 2017 is as follows:

 

    Shares     Weighted-
Average
Exercise
Price Per
Share
    Weighted-
Average
Remaining
Contractural
Life (Years)
    Aggregate
Intrinsic
Value (in
thousands)
 
Outstanding     578,813     $ 6.51       3.27     $  
Vested and exercisable     376,039     $ 5.58       3.00     $  

 

The intrinsic value of options is the fair value of the Company’s stock at December 31, 2017 less the per share exercise price of the option multiplied by the number of shares.

 

As of December 31, 2017, there is approximately $0.7 million of total unrecognized compensation cost related to the unvested share-based (option) compensation arrangements granted under the 2014 Plan. The remaining unrecognized compensation cost will be recognized over a weighted-average period of 1.9 years.

 

The following table summarizes information about stock options outstanding as of December 31, 2017:

 

      Options Outstanding     Options Exercisable  
Range of Exercise Prices     Quantity     Weighted-
Average
Remaining
Contractural
Life
(Years)
    Quantity     Weighted-
Average
Remaining
Contractural
Life
(Years)
 
                                   
$2.03 -$3.57       211,045       2.78       178,091       2.77  
$3.58 - $5.24       92,796       3.00       83,752       2.90  
$5.25 - $8.04       94,370       3.54       36,552       2.83  
$8.05 - $9.41       93,241       3.59       48,330       3.46  
$9.42 - $19.20       87,361       4.14       29,314       4.10  
                                     
          578,813       3.28       376,039       3.00  
                                     

Option modification 

 

During the three months ended June 30, 2016, the Compensation Committee of the Board of Directors approved the modification of the terms of a stock option previously granted to a member of its Board of Directors to accelerate vesting and the waiver of the early termination of the option based upon the director’s end of service to the Company. The modification resulted in additional compensation expense of $175,000.

 

Restricted Stock Units

 

In July 2017, the Company granted 49,751 restricted stock units (RSUs) with a grant date fair value per share of $11.68 to its then Chief Financial Officer, Mr. Weinswig, as part of his employment agreement. 16,584 RSUs will vest on each July 31, 2018 and July 31, 2019 and the remaining 16,583 RSU’s will vest on July 31, 2020. In October 2017, the Company granted 146,200 restricted stock units with a grant date fair value per share of $5.78 to certain non-executive employees. These restricted stock units were granted with 50% vesting on January 15, 2018 and the remaining 50% vesting on January 15, 2019. As of December 31, 2017, no restricted stock units had vested.

 

As of December 31, 2017, there is approximately $0.9 million of total unrecognized compensation cost related to the unvested share-based (RSU) compensation arrangements granted under the 2014 Plan. The remaining unrecognized compensation cost will be recognized over a weighted-average period of 1.9 years.

 

Reserved shares

 

At December 31, 2017, the Company has reserved shares of common stock for future issuance as follows:

 

    Number of  
    Shares  
Equity Plan        
  Subject to outstanding options and restricted shares     759,764  
  Available for future grants     1,065,003  
Convertible note-principal     702,247  
Officer and Director Purchase Plan     247,596  
Warrants     2,340,828  
December 2017 public financing overallotment     1,072,500  
      6,187,938