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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (unaudited) - USD ($) $ in Thousands | Total | Common Stock | Treasury Stock, Common | Additional Paid-in Capital | Accumulated Deficit | Accumulated Other Comprehensive Loss
--- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2023 |  | 6,040,234 |  |  |  |
Beginning balance at Dec. 31, 2023 | $ 48,138 | $ 91 | $ (3) | $ 913,522 | $ (856,988) | $ (8,484)
Treasury Stock, Common, Shares at Dec. 31, 2023 | (184,404) |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Common stock issued upon vesting of restricted stock units (in shares) |  | 28,846 |  |  |  |
Common stock issued upon vesting of restricted stock units | $ 1 |  |  | 1 |  |
Stock-based compensation | 8,251 |  |  | 8,251 |  |
Common stock issued under Employee Stock Purchase Plan (in shares) |  | 6,373 |  |  |  |
Common stock issued under Employee Stock Purchase Plan (ESPP) | 122 |  |  | 122 |  |
Net loss | (35,631) |  |  |  | (35,631) |
Other comprehensive income | (1,698) |  |  |  |  | (1,698)
Ending balance (in shares) at Mar. 31, 2024 |  | 6,075,453 |  |  |  |
Ending balance at Mar. 31, 2024 | $ 19,183 | $ 91 | (3) | 921,896 | (892,619) | (10,182)
Treasury Stock, Common, Shares at Mar. 31, 2024 | (184,404) |  |  |  |  |
Beginning balance (in shares) at Dec. 31, 2023 |  | 6,040,234 |  |  |  |
Beginning balance at Dec. 31, 2023 | $ 48,138 | $ 91 | (3) | 913,522 | (856,988) | (8,484)
Treasury Stock, Common, Shares at Dec. 31, 2023 | (184,404) |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net loss | $ (22,145) |  |  |  |  |
Ending balance (in shares) at Sep. 30, 2024 |  | 6,205,127 |  |  |  |
Ending balance at Sep. 30, 2024 | $ 45,906 | $ 93 | (3) | 932,602 | (879,133) | (7,653)
Treasury Stock, Common, Shares at Sep. 30, 2024 | (184,404) |  |  |  |  |
Beginning balance (in shares) at Mar. 31, 2024 |  | 6,075,453 |  |  |  |
Beginning balance at Mar. 31, 2024 | $ 19,183 | $ 91 | (3) | 921,896 | (892,619) | (10,182)
Treasury Stock, Common, Shares at Mar. 31, 2024 | (184,404) |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Common stock issued upon vesting of restricted stock units (in shares) |  | 35,761 |  |  |  |
Common stock issued upon vesting of restricted stock units | $ 2 | $ 1 |  | 1 |  |
Stock-based compensation | 5,762 |  |  | 5,762 |  |
Common stock issued under Employee Stock Purchase Plan (in shares) |  | 5,618 |  |  |  |
Common stock issued under Employee Stock Purchase Plan (ESPP) | 55 |  |  | 55 |  |
Activity related to divestiture | (185) |  |  | (185) |  |
Net loss | 41,795 |  |  |  | 41,795 |
Other comprehensive income | (6) |  |  |  |  | (6)
Ending balance (in shares) at Jun. 30, 2024 |  | 6,116,832 |  |  |  |
Ending balance at Jun. 30, 2024 | $ 66,606 | $ 92 | (3) | 927,529 | (850,824) | (10,188)
Treasury Stock, Common, Shares at Jun. 30, 2024 | (184,404) |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Common stock issued upon vesting of restricted stock units (in shares) |  | 83,269 |  |  |  |
Common stock issued upon vesting of restricted stock units | $ 0 | $ 1 |  | (1) |  |
Stock-based compensation | 4,981 |  |  | 4,981 |  |
Common stock issued under Employee Stock Purchase Plan (in shares) |  | 5,026 |  |  |  |
Common stock issued under Employee Stock Purchase Plan (ESPP) | 93 |  |  | 93 |  |
Net loss | (28,309) |  |  |  | (28,309) |
Other comprehensive income | 2,535 |  |  |  |  | 2,535
Ending balance (in shares) at Sep. 30, 2024 |  | 6,205,127 |  |  |  |
Ending balance at Sep. 30, 2024 | $ 45,906 | $ 93 | (3) | 932,602 | (879,133) | (7,653)
Treasury Stock, Common, Shares at Sep. 30, 2024 | (184,404) |  |  |  |  |
Preferred stock, shares outstanding (in shares) at Dec. 31, 2024 | 26,551 |  |  |  |  |
Temporary Equity, Carrying Amount, Attributable to Parent at Dec. 31, 2024 | $ 0 |  |  |  |  |
Beginning balance (in shares) at Dec. 31, 2024 |  | 6,263,782 |  |  |  |
Beginning balance at Dec. 31, 2024 | $ (67,316) | $ 94 | (3) | 936,047 | (991,261) | (12,193)
Treasury Stock, Common, Shares at Dec. 31, 2024 | (184,404) |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Common stock issued upon vesting of restricted stock units (in shares) |  | 148,077 |  |  |  |
Common stock issued upon vesting of restricted stock units | $ 0 | $ 2 |  | (2) |  |
Stock-based compensation | 4,754 |  |  | 4,754 |  |
Net loss | (14,133) |  |  |  | (14,133) |
Other comprehensive income | 1,751 |  |  |  |  | 1,751
Ending balance (in shares) at Mar. 31, 2025 |  | 6,411,859 |  |  |  |
Ending balance at Mar. 31, 2025 | $ (74,944) | $ 96 | (3) | 940,799 | (1,005,394) | (10,442)
Treasury Stock, Common, Shares at Mar. 31, 2025 | (184,404) |  |  |  |  |
Preferred stock, shares outstanding (in shares) at Dec. 31, 2024 | 26,551 |  |  |  |  |
Temporary Equity, Carrying Amount, Attributable to Parent at Dec. 31, 2024 | $ 0 |  |  |  |  |
Preferred stock, shares outstanding (in shares) at Sep. 30, 2025 | 26,551 |  |  |  |  |
Temporary Equity, Carrying Amount, Attributable to Parent at Sep. 30, 2025 | $ 20,664 |  |  |  |  |
Beginning balance (in shares) at Dec. 31, 2024 |  | 6,263,782 |  |  |  |
Beginning balance at Dec. 31, 2024 | $ (67,316) | $ 94 | (3) | 936,047 | (991,261) | (12,193)
Treasury Stock, Common, Shares at Dec. 31, 2024 | (184,404) |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net loss | $ (21,132) |  |  |  |  |
Ending balance (in shares) at Sep. 30, 2025 |  | 10,488,063 |  |  |  |
Ending balance at Sep. 30, 2025 | $ (22,050) | $ 155 | (3) | 997,483 | (1,012,393) | (7,292)
Treasury Stock, Common, Shares at Sep. 30, 2025 | (184,404) |  |  |  |  |
Preferred stock, shares outstanding (in shares) at Jun. 30, 2025 | 0 |  |  |  |  |
Temporary Equity, Carrying Amount, Attributable to Parent at Jun. 30, 2025 | $ 0 |  |  |  |  |
Beginning balance (in shares) at Mar. 31, 2025 |  | 6,411,859 |  |  |  |
Beginning balance at Mar. 31, 2025 | $ (74,944) | $ 96 | (3) | 940,799 | (1,005,394) | (10,442)
Treasury Stock, Common, Shares at Mar. 31, 2025 | (184,404) |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Common stock issued upon vesting of restricted stock units (in shares) |  | 162,046 |  |  |  |
Common stock issued upon vesting of restricted stock units | $ 0 | $ 2 |  | (2) |  |
Stock-based compensation | 4,256 |  |  | 4,256 |  |
Common stock issued under Employee Stock Purchase Plan (in shares) |  | 51,125 |  |  |  |
Common stock issued under Employee Stock Purchase Plan (ESPP) | 472 | $ 1 |  | 471 |  |
Net loss | (15,710) |  |  |  | (15,710) |
Other comprehensive income | 3,514 |  |  |  |  | 3,514
Ending balance (in shares) at Jun. 30, 2025 |  | 6,625,030 |  |  |  |
Ending balance at Jun. 30, 2025 | $ (82,412) | $ 99 | (3) | 945,524 | (1,021,104) | (6,928)
Treasury Stock, Common, Shares at Jun. 30, 2025 | (184,404) |  |  |  |  |
Increase (Decrease) in Temporary Equity [Roll Forward] |  |  |  |  |  |
Preferred stock issued in connection with debt transaction (in shares) | 26,551 |  |  |  |  |
Preferred stock issued in connection with troubled debt restructuring | $ 20,664 |  |  |  |  |
Preferred stock, shares outstanding (in shares) at Sep. 30, 2025 | 26,551 |  |  |  |  |
Temporary Equity, Carrying Amount, Attributable to Parent at Sep. 30, 2025 | $ 20,664 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Common stock issued upon vesting of restricted stock units (in shares) |  | 164,245 |  |  |  |
Common stock issued upon vesting of restricted stock units | 0 | $ 2 |  | (2) |  |
Stock-based compensation | 2,635 |  |  | 2,635 |  |
Net loss | 8,711 |  |  |  | 8,711 |
Other comprehensive income | (364) |  |  |  |  | (364)
Common stock issued in connection with debt transaction (in shares) |  | 3,698,788 |  |  |  |
Common stock issued in connection with troubled debt restructuring | 49,380 | $ 54 |  | 49,326 |  |
Ending balance (in shares) at Sep. 30, 2025 |  | 10,488,063 |  |  |  |
Ending balance at Sep. 30, 2025 | $ (22,050) | $ 155 | $ (3) | $ 997,483 | $ (1,012,393) | $ (7,292)
Treasury Stock, Common, Shares at Sep. 30, 2025 | (184,404) |  |  |  |  |

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