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v3.19.3

Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Common stock | Additional paid-in capital | Accumulated deficit | Accumulated other comprehensive loss | Total
--- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2017 | $ 2 | $ 183,224 | $ (171,434) |  |
Balance (in shares) at Dec. 31, 2017 | 2,364,526 |  |  |  |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |
Issuance of common stock for at-the-market offerings | $ 1 | 8,312 |  |  |
Issuance of common stock for at-the-market offerings (in shares) | 539,026 |  |  |  |
Issuance of common stock and warrants in public offerings | $ 4 | 38,881 |  |  |
Issuance of common stock and warrants in public offerings (in shares) | 4,200,000 |  |  |  |
Issuance of common stock upon exercise of common stock options and warrants |  | 4 |  |  |
Issuance of common stock upon exercise of common stock options and warrants (in shares) | 291 |  |  |  |
Stock-based compensation expense |  | 1,340 |  |  |
Realized gain on short-term investments |  |  |  | $ (5) | $ (5)
Net loss |  |  | (19,810) |  | (19,810)
Balance at Sep. 30, 2018 | $ 7 | 231,761 | (191,244) | (5) | 40,519
Balance (in shares) at Sep. 30, 2018 | 7,103,843 |  |  |  |
Balance at Jun. 30, 2018 | $ 7 | 231,371 | (185,565) |  |
Balance (in shares) at Jun. 30, 2018 | 7,103,843 |  |  |  |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |
Issuance of common stock and warrants in public offerings |  | (26) |  |  |
Stock-based compensation expense |  | 416 |  |  |
Realized gain on short-term investments |  |  |  | (5) | (5)
Net loss |  |  | (5,679) |  | (5,679)
Balance at Sep. 30, 2018 | $ 7 | 231,761 | (191,244) | (5) | 40,519
Balance (in shares) at Sep. 30, 2018 | 7,103,843 |  |  |  |
Balance at Dec. 31, 2018 | $ 7 | 232,243 | (197,304) | (4) | $ 34,942
Balance (in shares) at Dec. 31, 2018 | 7,141,996 |  |  |  | 7,141,996
Increase (Decrease) in Shareholders' Equity |  |  |  |  |
Issuance of common stock for at-the-market offerings | $ 1 | 3,223 |  |  |
Issuance of common stock for at-the-market offerings (in shares) | 564,590 |  |  |  |
Issuance of common stock and warrants in public offerings | $ 4 | 18,501 |  |  |
Issuance of common stock and warrants in public offerings (in shares) | 4,000,000 |  |  |  |
Issuance of common stock upon exercise of common stock options and warrants |  | 54 |  |  |
Issuance of common stock upon exercise of common stock options and warrants (in shares) | 8,700 |  |  |  |
Stock-based compensation expense |  | 1,227 |  |  |
Realized gain on short-term investments |  |  |  | 4 | $ 4
Net loss |  |  | (19,683) |  | (19,683)
Balance at Sep. 30, 2019 | $ 12 | 255,248 | (216,987) |  | $ 38,273
Balance (in shares) at Sep. 30, 2019 | 11,715,286 |  |  |  | 11,715,286
Balance at Jun. 30, 2019 | $ 12 | 253,821 | (210,473) | 1 |
Balance (in shares) at Jun. 30, 2019 | 11,553,937 |  |  |  |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |
Issuance of common stock for at-the-market offerings |  | 1,049 |  |  |
Issuance of common stock for at-the-market offerings (in shares) | 161,349 |  |  |  |
Stock-based compensation expense |  | 378 |  |  |
Realized gain on short-term investments |  |  |  | $ (1) | $ (1)
Net loss |  |  | (6,514) |  | (6,514)
Balance at Sep. 30, 2019 | $ 12 | $ 255,248 | $ (216,987) |  | $ 38,273
Balance (in shares) at Sep. 30, 2019 | 11,715,286 |  |  |  | 11,715,286

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