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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Revision of Prior Period, Accounting Standards Update, Adjustment
Common Stock
Additional Paid-in Capital
(Accumulated Deficit) Retained Earnings
(Accumulated Deficit) Retained Earnings
Revision of Prior Period, Accounting Standards Update, Adjustment
Accumulated Other Comprehensive Loss
Treasury Stock
Beginning Balance at Dec. 31, 2018 $ 99,515 $ 1,680 $ 190 $ 139,617 $ (15,397) $ 1,680 $ (14,731) $ (10,164)
Beginning Balance (in shares) at Dec. 31, 2018     19,026,000          
Beginning Balance, treasury stock (in shares) at Dec. 31, 2018               (1,282,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net (loss) income 33,255       33,255      
Other comprehensive (loss) income 11,964 [1]           11,964  
Stock-based compensation 4,159     4,159        
Issuance of common stock under employee stock purchase plan (in shares)     45,000          
Issuance of common stock under employee stock purchase plan 414     414        
Acquisition of treasury stock (in shares)               (115,000)
Acquisition of treasury stock (1,297)             $ (1,297)
Exercise of stock options and issuance of restricted stock awards, net of forfeitures (in shares)     328,000          
Exercise of stock options and issuance of restricted stock awards, net of forfeitures $ 299   $ 4 295        
Ending Balance, treasury stock (in shares) at Dec. 31, 2019 (1,397,438)             (1,397,000)
Ending Balance (in shares) at Dec. 31, 2019 18,001,261   19,399,000          
Ending Balance at Dec. 31, 2019 $ 149,989   $ 194 144,485 19,538   (2,767) $ (11,461)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net (loss) income (21,940)              
Other comprehensive (loss) income (465) [1]           (465)  
Stock-based compensation 3,462     3,462        
Issuance of common stock under employee stock purchase plan (in shares)     44,000          
Issuance of common stock under employee stock purchase plan 336     336        
Acquisition of treasury stock (in shares)               (36,000)
Acquisition of treasury stock (390)             $ (390)
Exercise of stock options and issuance of restricted stock awards, net of forfeitures (in shares)     420,000          
Exercise of stock options and issuance of restricted stock awards, net of forfeitures $ 892   $ 5 887        
Ending Balance, treasury stock (in shares) at Dec. 31, 2020 (1,432,694)             (1,433,000)
Ending Balance (in shares) at Dec. 31, 2020 18,429,840   19,863,000          
Ending Balance at Dec. 31, 2020 $ 131,884   $ 199 $ 149,170 $ (2,402)   $ (3,232) $ (11,851)
[1] Tax impact was nominal for all periods.