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Condensed Statements of Stockholders’ Equity (unaudited) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2022   25,045,751      
Beginning balance at Dec. 31, 2022 $ 34,777 $ 25 $ 506,713 $ (1,108) $ (470,853)
Increase (Decrease) in Stockholders' Equity          
Net loss (10,375)       (10,375)
Unrealized loss adjustment for short-term investment 1,108     1,108  
Issuance of common stock pursuant to stock option exercises (in shares)   17,608      
Issuance of common stock pursuant to stock option exercises 1   1    
Issuance of common stock upon vesting of restricted stock units (in shares)   325,747      
Shares withheld for taxes (in shares)   (35,562)      
Shares withheld for taxes (146)   (146)    
Repurchase of common stock (in shares)   (1,340)      
Stock-based compensation 2,125   2,125    
Ending balance (in shares) at Mar. 31, 2023   25,352,204      
Ending balance at Mar. 31, 2023 $ 27,490 $ 25 508,693 $ 0 (481,228)
Beginning balance (in shares) at Dec. 31, 2023 27,823,465 27,823,465      
Beginning balance at Dec. 31, 2023 $ 20,654 $ 28 524,435   (503,809)
Increase (Decrease) in Stockholders' Equity          
Net loss $ (8,925)       (8,925)
Issuance of common stock pursuant to stock option exercises (in shares) 409,045 409,045      
Issuance of common stock pursuant to stock option exercises $ 721   721    
Issuance of common stock upon vesting of restricted stock units (in shares)   522,483      
Issuance of common stock upon vesting of restricted stock units 0 $ 1 (1)    
Shares withheld for taxes (in shares)   (37,541)      
Shares withheld for taxes (649)   (649)    
Stock-based compensation $ 2,540   2,540    
Ending balance (in shares) at Mar. 31, 2024 28,717,452 28,717,452      
Ending balance at Mar. 31, 2024 $ 14,341 $ 29 $ 527,046   $ (512,734)