Quarterly report pursuant to Section 13 or 15(d)

CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT)

v3.19.1
CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Accumulated Deficit [Member]
Balance at Dec. 31, 2017 $ 857 $ 4 $ 324,124 $ (323,271)
Balance (in shares) at Dec. 31, 2017   3,534    
Net loss (2,605) $ 0 0 (2,605)
Issuance of warrants to purchase common stock, net 470 0 470  
Stock-based compensation 432 0 432 0
Balance at Mar. 31, 2018 (846) $ 4 325,026 (325,876)
Balance (in shares) at Mar. 31, 2018   3,534    
Balance at Dec. 31, 2018 6,831 $ 13 339,397 (332,579)
Balance (in shares) at Dec. 31, 2018   13,010    
Net loss (4,517) $ 0 0 (4,517)
Issuance of common stock upon exercises of warrants, net 605 $ 0 605 0
Issuance of common stock upon exercises of warrants, net (in shares)   404    
Stock-based compensation 136 $ 0 136 0
Balance at Mar. 31, 2019 $ 3,055 $ 13 $ 340,138 $ (337,096)
Balance (in shares) at Mar. 31, 2019   13,414