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CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2022   18,957,366    
Beginning balance at Dec. 31, 2022 $ 17,667 $ 19 $ 149,233 $ (131,585)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Stock-based compensation 980   980  
Issuance of common stock for vested restricted stock units and earned performance stock units (in shares)   319,274    
Shares forfeited in exchange for withholding taxes (in shares)   (24,720)    
Shares forfeited in exchange for withholding taxes (54)   (54)  
Net loss (2,240)     (2,240)
Ending balance (in shares) at Jun. 30, 2023   19,251,920    
Ending balance at Jun. 30, 2023 16,353 $ 19 150,159 (133,825)
Beginning balance (in shares) at Mar. 31, 2023   19,215,863    
Beginning balance at Mar. 31, 2023 16,922 $ 19 149,875 (132,972)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Stock-based compensation 338   338  
Issuance of shares for vested restricted stock grants (in shares)   60,777    
Shares forfeited in exchange for withholding taxes (in shares)   (24,720)    
Shares forfeited in exchange for withholding taxes (54)   (54)  
Net loss (853)     (853)
Ending balance (in shares) at Jun. 30, 2023   19,251,920    
Ending balance at Jun. 30, 2023 16,353 $ 19 150,159 (133,825)
Beginning balance (in shares) at Dec. 31, 2023   19,354,335    
Beginning balance at Dec. 31, 2023 17,276 $ 19 150,822 (133,565)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Stock-based compensation 600   600  
Stock option exercises, net of cashless exercises (in shares)   4,875    
Issuance of common stock for vested restricted stock units and earned performance stock units (in shares)   133,492    
Net loss (569)     (569)
Ending balance (in shares) at Jun. 30, 2024   19,492,702    
Ending balance at Jun. 30, 2024 17,307 $ 19 151,422 (134,134)
Beginning balance (in shares) at Mar. 31, 2024   19,404,561    
Beginning balance at Mar. 31, 2024 17,178 $ 19 151,166 (134,007)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Stock-based compensation 256   256  
Stock option exercises, net of cashless exercises (in shares)   4,875    
Issuance of shares for vested restricted stock grants (in shares)   83,266    
Net loss (127)     (127)
Ending balance (in shares) at Jun. 30, 2024   19,492,702    
Ending balance at Jun. 30, 2024 $ 17,307 $ 19 $ 151,422 $ (134,134)