Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Tables)

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Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2018
Accounting Policies [Abstract]  
Schedule of Computation of Potentially Dilutive Securities

The following outstanding shares subject to convertible notes, stock options, RSUs and warrants to purchase common stock were antidilutive due to a net loss in the periods presented and, therefore, were excluded from the dilutive securities computation for the nine months ended September 30, as indicated below.

 

    September 30,  
Excluded potentially dilutive securities (1):   2018     2017  
             
Convertible note - principal     702,247       702,247  
Options to purchase common stock     1,632,483       624,329  
Unvested restricted stock units     107,723       -  
Financing warrants to purchase common stock     2,340,828       2,340,828  
Total potential dilutive securities     4,783,281       3,667,404  

 

  (1) The number of shares is based on the maximum number of shares issuable on exercise or conversion of the related securities as of the period end. Such amounts have not been adjusted for the treasury stock method or weighted average outstanding calculations as required if the securities were dilutive.

Schedule of Concentration of Credit Risk

Revenues from the following customers each represented at least 10% of total revenue for the three and nine months ended September 30, 2018 and 2017, respectively. They also represented a significant portion of our accounts receivable as of September 30, 2018 and December 31, 2017, respectively.

 

    Revenue     Revenue     Accounts Receivable  
    Three months ended September 30,     Nine months ended September 30,     September 30,     December 31,  
    2018     2017     2018     2017     2018     2017  
                                     
Johnson Controls Battery Group, Inc.     94.7 %     96.1 %     86.4 %     95.2 %     94.8 %     95.4 %
Ocean Partners USA, Inc.     0.0 %     0.0 %     10.0 %     0.0 %     0.0 %     0.0 %