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CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Series D and E Preferred Stock | Preferred Stock Series A-2 Preferred Stock | Preferred Stock Series D Preferred Stock | Preferred Stock Series E Preferred Stock | Common Stock | Common Stock Series A-2 Preferred Stock | Common Stock Series D and E Preferred Stock | Treasury Stock | Additional Paid-In Capital | Additional Paid-In Capital Series D and E Preferred Stock | Accumulated Deficit
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Preferred Stock, Beginning Balance (in shares) at Dec. 31, 2020 |  |  | 45 | 1,697,958 | 131,579 |  |  |  |  |  |  |
Common Stock, Beginning Balance (in shares) at Dec. 31, 2020 |  |  |  |  |  | 7,861,912 |  |  |  |  |  |
Treasury Stock, Beginning Balance (in shares) at Dec. 31, 2020 |  |  |  |  |  |  |  |  | 113,283 |  |  |
Beginning Balance at Dec. 31, 2020 | $ 22,057 |  | $ 0 | $ 0 | $ 0 | $ 1 |  |  | $ (181) | $ 215,092 |  | $ (192,855)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Net loss | (3,433) |  |  |  |  |  |  |  |  |  |  | (3,433)
Stock-based compensation | 33 |  |  |  |  |  |  |  |  | 33 |  |
Preferred stock conversion (in shares) |  |  | (45) | 1,697,022 | 131,579 |  | (84,292) | (18,762,119) |  |  |  |
Conversion of Series D and E Preferred Stock |  | $ 0 |  |  |  |  |  | $ 2 |  |  | $ (2) |
Issuance of stock for services (in shares) |  |  |  |  |  | 21,008 |  |  |  |  |  |
Issuance of stock for services | 274 |  |  |  |  |  |  |  |  | 274 |  |
Forfeitures of restricted stock (in shares) |  |  |  | (81) |  |  |  |  |  |  |  |
Series D Preferred shares to pay withholding taxes (in shares) |  |  |  | (855) |  |  |  |  |  |  |  |
Preferred Stock, Ending Balance (in shares) at Mar. 31, 2021 |  |  | 0 | 0 | 0 |  |  |  |  |  |  |
Common Stock, Ending Balance (in shares) at Mar. 31, 2021 |  |  |  |  |  | 26,729,331 |  |  |  |  |  |
Treasury Stock, Ending Balance (in shares) at Mar. 31, 2021 |  |  |  |  |  |  |  |  | 113,283 |  |  |
Ending Balance at Mar. 31, 2021 | 18,931 |  | $ 0 | $ 0 | $ 0 | $ 3 |  |  | $ (181) | 215,397 |  | (196,288)
Preferred Stock, Beginning Balance (in shares) at Dec. 31, 2020 |  |  | 45 | 1,697,958 | 131,579 |  |  |  |  |  |  |
Common Stock, Beginning Balance (in shares) at Dec. 31, 2020 |  |  |  |  |  | 7,861,912 |  |  |  |  |  |
Treasury Stock, Beginning Balance (in shares) at Dec. 31, 2020 |  |  |  |  |  |  |  |  | 113,283 |  |  |
Beginning Balance at Dec. 31, 2020 | 22,057 |  | $ 0 | $ 0 | $ 0 | $ 1 |  |  | $ (181) | 215,092 |  | (192,855)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Net loss | (5,679) |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Ending Balance (in shares) at Jun. 30, 2021 |  |  | 0 | 0 | 0 |  |  |  |  |  |  |
Common Stock, Ending Balance (in shares) at Jun. 30, 2021 |  |  |  |  |  | 30,729,331 |  |  |  |  |  |
Treasury Stock, Ending Balance (in shares) at Jun. 30, 2021 |  |  |  |  |  |  |  |  | 113,283 |  |  |
Ending Balance at Jun. 30, 2021 | 28,305 |  | $ 0 | $ 0 | $ 0 | $ 3 |  |  | $ (181) | 227,017 |  | (198,534)
Preferred Stock, Beginning Balance (in shares) at Mar. 31, 2021 |  |  | 0 | 0 | 0 |  |  |  |  |  |  |
Common Stock, Beginning Balance (in shares) at Mar. 31, 2021 |  |  |  |  |  | 26,729,331 |  |  |  |  |  |
Treasury Stock, Beginning Balance (in shares) at Mar. 31, 2021 |  |  |  |  |  |  |  |  | 113,283 |  |  |
Beginning Balance at Mar. 31, 2021 | 18,931 |  | $ 0 | $ 0 | $ 0 | $ 3 |  |  | $ (181) | 215,397 |  | (196,288)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Net loss | (2,246) |  |  |  |  |  |  |  |  |  |  | (2,246)
Issuance of stock from financing, net of issuance costs (in shares) |  |  |  |  |  | 4,000,000 |  |  |  |  |  |
Issuance of stock from financing, net of issuance costs | 11,504 |  |  |  |  |  |  |  |  | 11,504 |  |
Issuance of stock for services | 116 |  |  |  |  |  |  |  |  | 116 |  |
Preferred Stock, Ending Balance (in shares) at Jun. 30, 2021 |  |  | 0 | 0 | 0 |  |  |  |  |  |  |
Common Stock, Ending Balance (in shares) at Jun. 30, 2021 |  |  |  |  |  | 30,729,331 |  |  |  |  |  |
Treasury Stock, Ending Balance (in shares) at Jun. 30, 2021 |  |  |  |  |  |  |  |  | 113,283 |  |  |
Ending Balance at Jun. 30, 2021 | $ 28,305 |  | $ 0 | $ 0 | $ 0 | $ 3 |  |  | $ (181) | 227,017 |  | (198,534)
Common Stock, Beginning Balance (in shares) at Dec. 31, 2021 | 30,816,048 |  |  |  |  | 30,929,331 |  |  |  |  |  |
Treasury Stock, Beginning Balance (in shares) at Dec. 31, 2021 |  |  |  |  |  |  |  |  | 113,283 |  |  |
Beginning Balance at Dec. 31, 2021 | $ 25,497 |  |  |  |  | $ 3 |  |  | $ (181) | 227,581 |  | (201,906)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Net loss | (4,539) |  |  |  |  |  |  |  |  |  |  | (4,539)
Stock-based compensation | 52 |  |  |  |  |  |  |  |  | 52 |  |
Forfeiture of unvested stock options | (84) |  |  |  |  |  |  |  |  | (84) |  |
Common Stock, Ending Balance (in shares) at Mar. 31, 2022 |  |  |  |  |  | 30,929,331 |  |  |  |  |  |
Treasury Stock, Ending Balance (in shares) at Mar. 31, 2022 |  |  |  |  |  |  |  |  | 113,283 |  |  |
Ending Balance at Mar. 31, 2022 | $ 20,926 |  |  |  |  | $ 3 |  |  | $ (181) | 227,549 |  | (206,445)
Common Stock, Beginning Balance (in shares) at Dec. 31, 2021 | 30,816,048 |  |  |  |  | 30,929,331 |  |  |  |  |  |
Treasury Stock, Beginning Balance (in shares) at Dec. 31, 2021 |  |  |  |  |  |  |  |  | 113,283 |  |  |
Beginning Balance at Dec. 31, 2021 | $ 25,497 |  |  |  |  | $ 3 |  |  | $ (181) | 227,581 |  | (201,906)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Net loss | $ (13,572) |  |  |  |  |  |  |  |  |  |  |
Forfeitures of restricted stock (in shares) | (150,000) |  |  |  |  |  |  |  |  |  |  |
Common Stock, Ending Balance (in shares) at Jun. 30, 2022 | 30,816,048 |  |  |  |  | 30,929,331 |  |  |  |  |  |
Treasury Stock, Ending Balance (in shares) at Jun. 30, 2022 |  |  |  |  |  |  |  |  | 113,283 |  |  |
Ending Balance at Jun. 30, 2022 | $ 11,924 |  |  |  |  | $ 3 |  |  | $ (181) | 227,580 |  | (215,478)
Common Stock, Beginning Balance (in shares) at Mar. 31, 2022 |  |  |  |  |  | 30,929,331 |  |  |  |  |  |
Treasury Stock, Beginning Balance (in shares) at Mar. 31, 2022 |  |  |  |  |  |  |  |  | 113,283 |  |  |
Beginning Balance at Mar. 31, 2022 | 20,926 |  |  |  |  | $ 3 |  |  | $ (181) | 227,549 |  | (206,445)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Net loss | (9,033) |  |  |  |  |  |  |  |  |  |  | (9,033)
Stock-based compensation | $ 31 |  |  |  |  |  |  |  |  | 31 |  |
Common Stock, Ending Balance (in shares) at Jun. 30, 2022 | 30,816,048 |  |  |  |  | 30,929,331 |  |  |  |  |  |
Treasury Stock, Ending Balance (in shares) at Jun. 30, 2022 |  |  |  |  |  |  |  |  | 113,283 |  |  |
Ending Balance at Jun. 30, 2022 | $ 11,924 |  |  |  |  | $ 3 |  |  | $ (181) | $ 227,580 |  | $ (215,478)

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