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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Common stock
Paid-in capital
Retained earnings (accumulated deficit)
Accumulated other comprehensive  loss
Beginning Balance (in shares) at Dec. 31, 2019   21,256,000      
Balance at beginning of year at Dec. 31, 2019 $ 236,317 $ 213 $ 263,386 $ 7,173 $ (34,455)
Comprehensive (loss) income:          
Net income (loss) (28,164)     (28,164)  
Translation adjustment (4,458)       (4,458)
Net change in cash flow hedges (2,877)       (2,877)
Effect of retirement benefit obligations 20       20
Comprehensive income (loss) (35,479)        
Performance shares issued to employees (in shares)   62,000      
Performance shares issued to employees   $ 1 (1)    
Net issuance of restricted shares to employees and directors (in shares)   220,000      
Net issuance of restricted shares granted to employees and directors   $ 2 (2)    
Stock compensation expense 1,320   1,320    
Shares effectively repurchased for required employee withholding taxes (in shares)   (52,000)      
Shares effectively repurchased for required employee withholding taxes (299) $ (1) (298)    
Dividends [1] (932)     (932)  
Ending Balance (in shares) at Mar. 31, 2020   21,486,000      
Balance at end of year at Mar. 31, 2020 200,927 $ 215 264,405 (21,923) (41,770)
Beginning Balance (in shares) at Dec. 31, 2020   21,755,000      
Balance at beginning of year at Dec. 31, 2020 230,136 $ 218 268,666 424 (39,172)
Comprehensive (loss) income:          
Net income (loss) 3,067     3,067  
Translation adjustment 1,829       1,829
Net change in cash flow hedges (173)       (173)
Effect of retirement benefit obligations 27       27
Comprehensive income (loss) 4,750        
Performance shares issued to employees (in shares)   150,000      
Performance shares issued to employees   $ 1 (1)    
Net issuance of restricted shares to employees and directors (in shares)   177,000      
Net issuance of restricted shares granted to employees and directors   $ 2 (2)    
Stock compensation expense $ 1,439   1,439    
Net exercise of stock options (in shares) 166,400 44,000      
Net exercise of stock options $ 184   184    
Shares effectively repurchased for required employee withholding taxes (in shares)   (146,000)      
Shares effectively repurchased for required employee withholding taxes (2,160) $ (1) (2,159)    
Dividends [1] (943)     (943)  
Ending Balance (in shares) at Mar. 31, 2021   21,980,000      
Balance at end of year at Mar. 31, 2021 $ 233,406 $ 220 $ 268,127 $ 2,548 $ (37,489)
[1] Cash dividends declared per share of common stock were $0.0425 and $0.0425 in the three months ended March 31, 2021 and 2020, respectively.