Quarterly report pursuant to Section 13 or 15(d)

Statements of Stockholders' Equity

v3.20.2
Statements of Stockholders' Equity - USD ($)
$ in Thousands
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Accumulated Other Comprehensive Income (Loss)
Total
Beginning Balance at Dec. 31, 2018 $ 82 $ 429,727 $ (388,274) $ (9) $ 41,526
Balance (in shares) at Dec. 31, 2018 82,323,413        
Increase (Decrease) in Stockholders' Equity          
Stock-based compensation expense   754     754
Exercise of stock options   21     21
Exercise of stock options (in shares) 30,225        
Issuance of warrants   347     347
Issuance of common stock, net of issuance costs $ 10 8,886     8,896
Issuance of common stock, net of issuance costs (in shares) 10,000,000        
Unrealized gain on marketable securities       12 12
Net loss     (5,169)   (5,169)
Ending Balance at Mar. 31, 2019 $ 92 439,735 (393,443) 3 46,387
Balance (in shares) at Mar. 31, 2019 92,353,638        
Beginning Balance at Dec. 31, 2018 $ 82 429,727 (388,274) (9) 41,526
Balance (in shares) at Dec. 31, 2018 82,323,413        
Increase (Decrease) in Stockholders' Equity          
Net loss         (9,860)
Ending Balance at Jun. 30, 2019 $ 92 440,424 (398,134) 10 42,392
Balance (in shares) at Jun. 30, 2019 92,567,195        
Beginning Balance at Mar. 31, 2019 $ 92 439,735 (393,443) 3 46,387
Balance (in shares) at Mar. 31, 2019 92,353,638        
Increase (Decrease) in Stockholders' Equity          
Stock-based compensation expense   793     793
Shares repurchased by the Company (in shares) (122)        
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes   (104)     (104)
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes (in shares) 213,679        
Unrealized gain on marketable securities       7 7
Net loss     (4,691)   (4,691)
Ending Balance at Jun. 30, 2019 $ 92 440,424 (398,134) $ 10 42,392
Balance (in shares) at Jun. 30, 2019 92,567,195        
Beginning Balance at Dec. 31, 2019 $ 94 443,129 (413,145)   $ 30,078
Balance (in shares) at Dec. 31, 2019 94,213,760       94,213,760
Increase (Decrease) in Stockholders' Equity          
Stock-based compensation expense   891     $ 891
Issuance of common stock, net of issuance costs $ 5 3,546     3,551
Issuance of common stock, net of issuance costs (in shares) 4,816,244        
Net loss     (5,725)   (5,725)
Ending Balance at Mar. 31, 2020 $ 99 447,566 (418,870)   28,795
Balance (in shares) at Mar. 31, 2020 99,030,004        
Beginning Balance at Dec. 31, 2019 $ 94 443,129 (413,145)   $ 30,078
Balance (in shares) at Dec. 31, 2019 94,213,760       94,213,760
Increase (Decrease) in Stockholders' Equity          
Issuance of common stock, net of issuance costs (in shares)         28,100,000
Net loss         $ (11,947)
Ending Balance at Jun. 30, 2020 $ 127 480,293 (425,092)   $ 55,328
Balance (in shares) at Jun. 30, 2020 127,210,272       127,210,272
Beginning Balance at Mar. 31, 2020 $ 99 447,566 (418,870)   $ 28,795
Balance (in shares) at Mar. 31, 2020 99,030,004        
Increase (Decrease) in Stockholders' Equity          
Stock-based compensation expense   766     766
Issuance of common stock, net of issuance costs $ 28 32,001     32,029
Issuance of common stock, net of issuance costs (in shares) 28,135,057        
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes   (40)     (40)
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes (in shares) 45,211        
Net loss     (6,222)   (6,222)
Ending Balance at Jun. 30, 2020 $ 127 $ 480,293 $ (425,092)   $ 55,328
Balance (in shares) at Jun. 30, 2020 127,210,272       127,210,272