v3.20.2
Condensed Consolidated Statements of Stockholders' (Deficit) Equity (Unaudited) - USD ($)
$ in Thousands
Cumulative Effect, Period of Adoption, Adjustment [Member]
Retained Earnings [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Balance (in shares) at Dec. 31, 2018     78,757,930      
Balance at Dec. 31, 2018 $ 153 $ 153 $ 78 $ 349,194 $ (345,019) $ 4,253
Stock-based compensation       1,107   1,107
Issuance of common stock upon ESPP purchase (in shares)     85,135      
Issuance of common stock upon ESPP purchase     $ 1 238   239
Net loss         (13,674) (13,674)
Issuance of common stock upon exercise of stock options (in shares)     13,583      
Issuance of common stock upon exercise of stock options       31   31
Stock-based compensation       1,107   1,107
Balance (in shares) at Mar. 31, 2019     78,856,648      
Balance at Mar. 31, 2019     $ 79 350,570 (358,540) (7,891)
Balance (in shares) at Dec. 31, 2018     78,757,930      
Balance at Dec. 31, 2018 $ 153 $ 153 $ 78 349,194 (345,019) 4,253
Net loss           (38,817)
Balance (in shares) at Sep. 30, 2019     79,573,001      
Balance at Sep. 30, 2019     $ 79 355,330 (383,683) (28,274)
Balance (in shares) at Mar. 31, 2019     78,856,648      
Balance at Mar. 31, 2019     $ 79 350,570 (358,540) (7,891)
Stock-based compensation       1,346   1,346
Net loss         (12,412) (12,412)
Issuance of common stock upon exercise of stock options (in shares)     57,522      
Issuance of common stock upon exercise of stock options       155   155
Issuance of warrants related to debt financing       383   383
Stock-based compensation       1,346   1,346
Balance (in shares) at Jun. 30, 2019     78,914,170      
Balance at Jun. 30, 2019     $ 79 352,454 (370,952) (18,419)
Stock-based compensation     $ 0 1,326 0 1,326
Net proceeds from issuance of common stock in connection with equity financings (in shares)     500,000      
Stock Issued During Period, Value, New Issues     $ 0 1,233 0 1,233
Issuance of common stock upon ESPP purchase (in shares)     118,334      
Issuance of common stock upon ESPP purchase     $ 0 234 0 234
Net loss     $ 0 0 (12,731) (12,731)
Issuance of common stock upon exercise of stock options (in shares)     40,497      
Issuance of common stock upon exercise of stock options     $ 0 83 0 83
Stock-based compensation     $ 0 1,326 0 1,326
Balance (in shares) at Sep. 30, 2019     79,573,001      
Balance at Sep. 30, 2019     $ 79 355,330 (383,683) (28,274)
Balance (in shares) at Dec. 31, 2019     79,573,101      
Balance at Dec. 31, 2019     $ 79 356,609 (398,106) (41,418) [1]
Stock-based compensation       1,146   1,146
Restricted stock units vested (in shares)     216,399      
Tax payments related to shares withheld for restricted stock units vested       (86)   (86)
Net proceeds from issuance of common stock in connection with equity financings (in shares)     431,800      
Stock Issued During Period, Value, New Issues     $ 1 783   784
Issuance of common stock upon ESPP purchase (in shares)     194,451      
Issuance of common stock upon ESPP purchase       218   218
Net loss         (15,925) (15,925)
Stock-based compensation       1,146   1,146
Balance (in shares) at Mar. 31, 2020     80,415,751      
Balance at Mar. 31, 2020     $ 80 358,670 (414,031) (55,281)
Balance (in shares) at Dec. 31, 2019     79,573,101      
Balance at Dec. 31, 2019     $ 79 356,609 (398,106) (41,418) [1]
Net loss           (31,461)
Balance (in shares) at Sep. 30, 2020     90,477,613      
Balance at Sep. 30, 2020     $ 90 371,624 (429,567) (57,853)
Balance (in shares) at Mar. 31, 2020     80,415,751      
Balance at Mar. 31, 2020     $ 80 358,670 (414,031) (55,281)
Stock-based compensation       1,090   1,090
Restricted stock units vested (in shares)     29,434      
Net proceeds from issuance of common stock in connection with equity financings (in shares)     445,000      
Stock Issued During Period, Value, New Issues       665   665
Net loss         (6,606) (6,606)
Stock-based compensation       1,090   1,090
Balance (in shares) at Jun. 30, 2020     80,890,185      
Balance at Jun. 30, 2020     $ 80 360,425 (420,637) (60,132)
Stock-based compensation     $ 0 1,104 0 1,104
Restricted stock units vested (in shares)     7,789      
Net proceeds from issuance of common stock in connection with equity financings (in shares)     9,433,962      
Stock Issued During Period, Value, New Issues     $ 10 9,941 0 9,951
Issuance of common stock upon ESPP purchase (in shares)     145,677      
Issuance of common stock upon ESPP purchase     $ 0 154 0 154
Net loss     0 0 (8,930) (8,930)
Stock-based compensation     $ 0 1,104 0 1,104
Balance (in shares) at Sep. 30, 2020     90,477,613      
Balance at Sep. 30, 2020     $ 90 $ 371,624 $ (429,567) $ (57,853)
[1] The condensed consolidated balance sheet as of December 31, 2019 has been derived from the audited financial statements as of that date included in the Company's Annual Report on Form 10-K for the year ended December 31, 2019.