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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Accumulated Other Comprehensive Loss
Treasury Stock
Beginning balance (in shares) at Dec. 31, 2020   19,863,000        
Beginning balance at Dec. 31, 2020 $ 131,884 $ 199 $ 149,170 $ (2,402) $ (3,232) $ (11,851)
Beginning balance, treasury stock (in shares) at Dec. 31, 2020           (1,433,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (9,701)     (9,701)    
Other comprehensive income (loss) 264 [1]       264  
Stock-based compensation 1,987   1,987      
Exercise of stock options and issuance of restricted stock awards, net of forfeitures (in shares)   382,000        
Exercise of stock options and issuance of restricted stock awards, net of forfeitures 2,442 $ 3 2,439      
Ending balance (in shares) at Jun. 30, 2021   20,245,000        
Ending balance at Jun. 30, 2021 126,876 $ 202 153,596 (12,103) (2,968) $ (11,851)
Ending balance, treasury stock (in shares) at Jun. 30, 2021           (1,433,000)
Beginning balance (in shares) at Mar. 31, 2021   20,165,000        
Beginning balance at Mar. 31, 2021 130,569 $ 202 151,657 (6,430) (3,009) $ (11,851)
Beginning balance, treasury stock (in shares) at Mar. 31, 2021           (1,433,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (5,673)     (5,673)    
Other comprehensive income (loss) 41 [1]       41  
Stock-based compensation 1,055   1,055      
Exercise of stock options and issuance of restricted stock awards, net of forfeitures (in shares)   80,000        
Exercise of stock options and issuance of restricted stock awards, net of forfeitures 884   884      
Ending balance (in shares) at Jun. 30, 2021   20,245,000        
Ending balance at Jun. 30, 2021 $ 126,876 $ 202 153,596 (12,103) (2,968) $ (11,851)
Ending balance, treasury stock (in shares) at Jun. 30, 2021           (1,433,000)
Beginning balance (in shares) at Dec. 31, 2021 18,910,001 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 (1,432,694)         (1,433,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss $ (6,136)     (6,136)    
Other comprehensive income (loss) (612) [1]       (612)  
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 $ 0 193      
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 19,070,744 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 (1,432,694)         (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 loss (1,444)     (1,444)    
Other comprehensive income (loss) (419) [1]       (419)  
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 19,070,744 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 (1,432,694)         (1,433,000)
[1] Tax impact was nominal for all periods.