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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 income (loss) (6,136)     (6,136)    
Other comprehensive income (loss) (612)       (612) [1]  
Stock-based compensation 1,586   1,586      
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)   138,000        
Exercise of stock options and issuance of restricted stock awards, net of forfeitures 151 $ 2 149      
Taxes accrued for net share settlement of options (131)   (131)      
Ending balance (in shares) at Jun. 30, 2022   20,503,000        
Ending balance at Jun. 30, 2022 124,028 $ 205 157,996 (18,301) (4,021) $ (11,851)
Ending balance, treasury stock (in shares) at Jun. 30, 2022           (1,433,000)
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]            
Acquisition of treasury stock (in shares) 0          
Ending balance (in shares) at Dec. 31, 2022 19,198,458 20,631,000        
Ending balance at Dec. 31, 2022 $ 156,656 $ 206 160,475 11,936 (4,110) $ (11,851)
Ending balance, treasury stock (in shares) at Dec. 31, 2022 (1,432,694)         (1,433,000)
Beginning balance (in shares) at Mar. 31, 2022   20,328,000        
Beginning balance at Mar. 31, 2022 $ 125,035 $ 203 157,142 (16,857) (3,602) $ (11,851)
Beginning balance, treasury stock (in shares) at Mar. 31, 2022           (1,433,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income (loss) (1,444)     (1,444)    
Other comprehensive income (loss) (419)       (419) [1]  
Stock-based compensation 705   705      
Exercise of stock options and issuance of restricted stock awards, net of forfeitures (in shares)   175,000        
Exercise of stock options and issuance of restricted stock awards, net of forfeitures 151 $ 2 149      
Ending balance (in shares) at Jun. 30, 2022   20,503,000        
Ending balance at Jun. 30, 2022 $ 124,028 $ 205 157,996 (18,301) (4,021) $ (11,851)
Ending balance, treasury stock (in shares) at Jun. 30, 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]            
Acquisition of treasury stock (in shares) (23,000)          
Ending balance (in shares) at Mar. 31, 2023   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           (1,456,000)
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 income (loss) $ 913     913    
Other comprehensive income (loss) 155       155 [1]  
Stock-based compensation 874   874      
Acquisition of treasury stock (in shares)           (23,000)
Acquisition of treasury stock (239)         $ (239)
Exercise of stock options and issuance of restricted stock awards, net of forfeitures (in shares)   338,000        
Exercise of stock options and issuance of restricted stock awards, net of forfeitures $ 2,345 $ 4 2,341      
Ending balance (in shares) at Jun. 30, 2023 19,513,327 20,969,000        
Ending balance at Jun. 30, 2023 $ 160,704 $ 210 163,690 12,849 (3,955) $ (12,090)
Ending balance, treasury stock (in shares) at Jun. 30, 2023 (1,456,109)         (1,456,000)
Beginning balance (in shares) at Mar. 31, 2023   20,826,000        
Beginning balance at Mar. 31, 2023 $ 157,792 $ 208 161,779 11,924 (4,029) $ (12,090)
Beginning balance, treasury stock (in shares) at Mar. 31, 2023           (1,456,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income (loss) 925     925    
Other comprehensive income (loss) 74       74 [1]  
Stock-based compensation 578   578      
Exercise of stock options and issuance of restricted stock awards, net of forfeitures (in shares)   143,000        
Exercise of stock options and issuance of restricted stock awards, net of forfeitures $ 1,335 $ 2 1,333      
Ending balance (in shares) at Jun. 30, 2023 19,513,327 20,969,000        
Ending balance at Jun. 30, 2023 $ 160,704 $ 210 $ 163,690 $ 12,849 $ (3,955) $ (12,090)
Ending balance, treasury stock (in shares) at Jun. 30, 2023 (1,456,109)         (1,456,000)
[1] Tax impact was nominal for all periods.