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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Retained earnings
Accumulated Other Comprehensive Loss
Treasury Stock
Beginning balance (in shares) at Dec. 31, 2021   20,343,000        
Beginning balance at Dec. 31, 2021 $ 128,977 $ 203 $ 156,199 $ (12,165) $ (3,409) $ (11,851)
Beginning balance, treasury stock (in shares) at Dec. 31, 2021           (1,433,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (4,692)     (4,692)    
Other comprehensive income (193) [1]       (193)  
Stock-based compensation 881   881      
Issuance of common stock under employee stock purchase plan (in shares)   22,000        
Issuance of common stock under employee stock purchase plan 193   193      
Exercise of stock options and issuance of restricted stock awards, net of forfeitures (in shares)   (37,000)        
Taxes accrued for net share settlement of options (131)   (131)      
Ending balance (in shares) at Mar. 31, 2022   20,328,000        
Ending balance at Mar. 31, 2022 $ 125,035 $ 203 157,142 (16,857) (3,602) $ (11,851)
Ending balance, treasury stock (in shares) at Mar. 31, 2022           (1,433,000)
Beginning balance (in shares) at Dec. 31, 2022 19,198,458 20,631,000        
Beginning balance at Dec. 31, 2022 $ 156,656 $ 206 160,475 11,936 (4,110) $ (11,851)
Beginning balance, treasury stock (in shares) at Dec. 31, 2022 (1,432,694)         (1,433,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss $ (12)     (12)    
Other comprehensive income [1] 81          
Stock-based compensation $ 296   296      
Acquisition of treasury stock (in shares) (23)         (23,000)
Acquisition of treasury stock $ (239)         $ (239)
Exercise of stock options and issuance of restricted stock awards, net of forfeitures (in shares)   195,000        
Exercise of stock options and issuance of restricted stock awards, net of forfeitures $ 1,010 $ 2 1,008      
Ending balance (in shares) at Mar. 31, 2023 19,369,696 20,826,000        
Ending balance at Mar. 31, 2023 $ 157,792 $ 208 $ 161,779 $ 11,924 $ (4,029) $ (12,090)
Ending balance, treasury stock (in shares) at Mar. 31, 2023 (1,456,109)         (1,456,000)
[1] Tax impact was nominal for all periods.