Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Stockholders' Equity (Deficit)

v3.6.0.2
Consolidated Statements of Stockholders' Equity (Deficit) - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
Total
Balance, beginning at Dec. 31, 2014 $ 4 $ 1,600 $ (2,374) $ (770)
Balance, beginning (in shares) at Dec. 31, 2014 4,363,641      
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Common stock issued upon initial public offering ("IPO"), net of offering costs $ 7 29,891 29,898
Common stock issued upon initial public offering ("IPO"), net of offering costs (in shares) 6,600,000      
Common stock issued for over allotment of the IPO, net of offering costs $ 1 2,963 2,964
Common stock issued for over allotment of the IPO, net of offering costs (in shares) 641,930      
Conversion of convertible notes and accrued interest upon completion of the IPO $ 2 6,277 6,279
Conversion of convertible notes and accrued interest upon completion of the IPO (in shares) 2,511,871      
Extinguishment of benficial conversion feature derivative liability 6,280 6,280
Reclassification of financing warrants (from derivative liability to APIC) upon completion of IPO 881 881
Stock based compensation - stock options 301 301
Stock issued for consulting services 98 98
Stock issued for consulting services (in shares) 20,000      
Warrants issued for consulting services   65 65
Net loss (12,331) (12,332)
Balance, ending at Dec. 31, 2015 $ 14 48,356 (14,705) $ 33,665
Balance, ending (in shares) at Dec. 31, 2015 14,137,442     14,137,442
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Stock based compensation - stock options 1,060 $ 1,060
Warrants issued for consulting services 138 138
Cashless exercise of warrant
Cashless exercise of warrant (in shares) 15,203      
Exercise of options to purchase common stock 19 $ 19
Exercise of options to purchase common stock (in shares) 4,500     (4,500)
Common stock issued in May 2016 Private Placement, net of $345 offering costs $ 1 4,777 $ 4,778
Common stock issued in May 2016 Private Placement, net of $345 offering costs (in shares) 719,333      
Common stock issued for cash from Interstate Battery, net of $629 allocated transaction cost $ 1 4,369 4,370
Common stock issued for cash from Interstate Battery, net of $629 allocated transaction cost (in shares) 702,247      
Common stock issued in November 2016 public offering, net of $1,688 offering costs $ 2 21,540 21,542
Common stock issued in November 2016 public offering, net of $1,688 offering costs (in shares) 2,300,000      
Proceeds allocated to warrants issued and beneficial conversion feature in connection with Interstate Batteries Agreement 4,975 4,975
Net loss (13,557) (13,557)
Balance, ending at Dec. 31, 2016 $ 18 $ 85,234 $ (28,262) $ 56,990
Balance, ending (in shares) at Dec. 31, 2016 17,878,725     17,878,725