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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Common Stock
Paid-In Capital
Accumulated Deficit
Treasury Stock
Total
Balance at Dec. 31, 2020 $ 19 $ 383,723 $ (326,013) $ (258) $ 57,471
Balance, shares at Dec. 31, 2020 19,172,020        
Net loss     (13,438)   (13,438)
Common stock issued, net of issuance costs $ 15 81,850     81,865
Common stock issued, net of issuance costs (in shares) 15,407,018        
Stock compensation expense and related share issuances, net of shares withheld for payment of taxes   594     594
Stock compensation expense and related share issuances, net of shares withheld for payment of taxes (in shares) 57,186        
Minimum withholding taxes on net share settlements of equity awards   (150)     (150)
Balance at Sep. 30, 2021 $ 34 466,017 (339,451) (258) 126,342
Balance, shares at Sep. 30, 2021 34,636,224        
Balance at Jun. 30, 2021 $ 33 461,717 (334,883) (258) 126,609
Balance, shares at Jun. 30, 2021 33,536,476        
Net loss     (4,568)   (4,568)
Common stock issued, net of issuance costs $ 1 4,001     4,002
Common stock issued, net of issuance costs (in shares) 1,099,748        
Stock compensation expense and related share issuances, net of shares withheld for payment of taxes   299     299
Balance at Sep. 30, 2021 $ 34 466,017 (339,451) (258) 126,342
Balance, shares at Sep. 30, 2021 34,636,224        
Balance at Dec. 31, 2021 $ 35 468,578 (342,157) (258) 126,198
Balance, shares at Dec. 31, 2021 35,279,724        
Net loss     (9,417)   (9,417)
Common stock issued, net of issuance costs $ 13 25,591     25,604
Common stock issued, net of issuance costs (in shares) 12,619,147        
Stock compensation expense and related share issuances, net of shares withheld for payment of taxes   703     703
Stock compensation expense and related share issuances, net of shares withheld for payment of taxes (in shares) 167,972        
Minimum withholding taxes on net share settlements of equity awards   (32)     (32)
Balance at Sep. 30, 2022 $ 48 494,840 (351,574) (258) 143,056
Balance, shares at Sep. 30, 2022 48,066,843        
Balance at Jun. 30, 2022 $ 47 493,445 (348,121) (258) 145,113
Balance, shares at Jun. 30, 2022 47,218,863        
Net loss     (3,453)   (3,453)
Common stock issued, net of issuance costs $ 1 1,062     1,063
Common stock issued, net of issuance costs (in shares) 796,781        
Stock compensation expense and related share issuances, net of shares withheld for payment of taxes   333     333
Stock compensation expense and related share issuances, net of shares withheld for payment of taxes (in shares) 51,199        
Balance at Sep. 30, 2022 $ 48 $ 494,840 $ (351,574) $ (258) $ 143,056
Balance, shares at Sep. 30, 2022 48,066,843