XML 19 R5.htm IDEA: XBRL DOCUMENT v3.19.1
Consolidated Statements of Convertible Preferred Stock and Stockholders' Deficit - USD ($)
$ in Thousands
Total
Series A Convertible Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
Beginning Balance at Dec. 31, 2017 $ (11,268)   $ 159 $ 196,760 $ (208,187)
Beginning Balance at Dec. 31, 2017   $ 0      
Beginning Balance, Shares at Dec. 31, 2017     24,571,029    
Beginning Balance, Shares at Dec. 31, 2017   4,605      
Stock-based compensation expense 403     403  
Exercise of common stock options 2     2  
Exercise of common stock options, Shares     919    
Issuance of common stock -net 5,869   $ 27 5,842  
Issuance of common stock -net, Shares     2,691,494    
Fees related to issuance of common stock (243)     (243)  
Conversion of convertible preferred stock, Shares   (3,204) 1,423,970    
Net loss (14,833)       (14,833)
Ending Balance at Mar. 31, 2018   $ 0      
Ending Balance at Mar. 31, 2018 (20,070)   $ 186 202,764 (223,020)
Ending Balance,Shares at Mar. 31, 2018   1,401      
Ending Balance, Shares at Mar. 31, 2018     28,687,412    
Beginning Balance at Dec. 31, 2018 (458)   $ 513 215,859 (216,830)
Beginning Balance at Dec. 31, 2018   $ 0      
Beginning Balance, Shares at Dec. 31, 2018     62,025,398    
Beginning Balance, Shares at Dec. 31, 2018   400      
Stock-based compensation expense 107     107  
Exercise of warrants 4,234   $ 326 3,908  
Exercise of warrants, Shares     32,574,203    
Net loss (9,415)       (9,415)
Ending Balance at Mar. 31, 2019   $ 0      
Ending Balance at Mar. 31, 2019 $ (5,532)   $ 839 $ 219,874 $ (226,245)
Ending Balance,Shares at Mar. 31, 2019   400      
Ending Balance, Shares at Mar. 31, 2019     94,599,601