Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Stockholders' Equity (Deficit)

v3.19.1
Condensed Consolidated Statements of Stockholders' Equity (Deficit) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Retained Earnings
Restricted Stock Units (RSUs)
Common Stock
2019 Public Offering
2019 Public Offering
Common Stock
2019 Public Offering
Additional Paid-in Capital
Over-Allotment Option
Over-Allotment Option
Common Stock
Over-Allotment Option
Additional Paid-in Capital
Beginning balance (in shares) at Dec. 31, 2017   27,554,076                  
Beginning balance at Dec. 31, 2017 $ 58,965 $ 27 $ 113,780 $ (54,842)              
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Stock-based compensation 144   144                
Common stock issued during period (in shares)   2,034     65,600         1,072,500  
Proceeds from issuance of common stock 4   4           $ 2,103 $ 2 $ 2,101
Net loss (7,532)     (7,532)              
Ending balance (in shares) at Mar. 31, 2018   28,694,210                  
Ending Balance at Mar. 31, 2018 53,684 $ 29 116,029 (62,374)              
Beginning balance (in shares) at Dec. 31, 2018   38,932,437                  
Beginning balance at Dec. 31, 2018 50,090 $ 39 145,147 (95,096)              
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Stock-based compensation 1,067   1,067                
Warrants related to Veolia agreement 578   578                
Common stock issued for consulting services (in shares)   302,442     317,818   5,175,000        
Proceeds from common stock issued for consulting services 1,187   1,187     $ 9,063 $ 5 $ 9,058      
Net loss (11,708)     (11,708)              
Ending balance (in shares) at Mar. 31, 2019   44,727,697                  
Ending Balance at Mar. 31, 2019 $ 50,278 $ 45 $ 157,037 $ (106,804)