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CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($) $ in Thousands | Common Stock | Paid-In Capital | Accumulated Deficit | Treasury Stock | Total
--- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2019 | $ 3 | $ 319,758 | $ (302,439) | $ (258) | $ 17,064
Balance, shares at Dec. 31, 2019 | 3,339,541 |  |  |  |
Net loss |  |  | (23,574) |  | (23,574)
Common stock issued, net of issuance costs | $ 16 | 62,673 |  |  | 62,689
Common stock issued, net of issuance costs (in shares) | 15,681,968 |  |  |  |
Common stock issued for commitment fees |  | 925 |  |  | 925
Common stock issued for commitment fees, shares | 150,000 |  |  |  |
Stock compensation expense and related share issuances, net of shares withheld for the payment of taxes |  | 367 |  |  | 367
Stock compensation expense and related share issuances, net of shares withheld for the payment of taxes (in shares) | 511 |  |  |  |
Balance at Dec. 31, 2020 | $ 19 | 383,723 | (326,013) | (258) | 57,471
Balance, shares at Dec. 31, 2020 | 19,172,020 |  |  |  |
Net loss |  |  | (16,144) |  | (16,144)
Common stock issued, net of issuance costs | $ 16 | 84,126 |  |  | 84,142
Common stock issued, net of issuance costs (in shares) | 16,050,518 |  |  |  |
Stock compensation expense and related share issuances, net of shares withheld for the payment of taxes |  | 879 |  |  | 879
Stock compensation expense and related share issuances, net of shares withheld for the payment of taxes (in shares) | 57,186 |  |  |  |
Minimum withholding taxes on net share settlements of equity awards |  | (150) |  |  | (150)
Balance at Dec. 31, 2021 | $ 35 | $ 468,578 | $ (342,157) | $ (258) | $ 126,198
Balance, shares at Dec. 31, 2021 | 35,279,724 |  |  |  |

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