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Consolidated statements of stockholder's equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Treasury Stock [Member]
Total stockholders' equity at begining of the year, Value at Dec. 31, 2016 $ 72,196 $ 418 $ 215,134 $ (116,030) $ (16,658) $ (10,668)
Share based payment change in accounting principle 0   72 (72)    
Stock option exercises 190 2 188      
Stock purchase plan, net 140   140      
Shares withheld for taxes (243) (1) (242)      
Stock compensation expense 3,500   3,500      
Net income (loss) (865)     (865)    
Other comprehensive loss 5,982       5,982  
Total stockholders' equity at year end, Value at Dec. 31, 2017 $ 80,900 $ 419 218,792 (116,967) (10,676) (10,668)
Beginning balance shares at Dec. 31, 2016   42,187,000        
Stock option exercises during the year, Shares 143,391 143,000        
Stock purchase plan, net, Shares 76,215 76,000        
Vesting of restricted stock units, Shares   489,000        
Shares withheld for taxes shares   (131,000)        
Ending balance shares at Dec. 31, 2017   42,764,000        
Stock option exercises $ 5,166 $ 17 5,149      
Stock purchase plan, net 160 1 159      
Shares withheld for taxes (768) (1) (767)      
Stock compensation expense 3,044   3,044      
Net income (loss) (2,922)     (2,922)    
Other comprehensive loss (2,856)       (2,856)  
Total stockholders' equity at year end, Value at Dec. 31, 2018 $ 82,724 $ 436 $ 226,377 $ (119,889) $ (13,532) $ (10,668)
Stock option exercises during the year, Shares 1,696,255 1,696,000        
Stock purchase plan, net, Shares 89,308 89,000        
Vesting of restricted stock units, Shares   915,000        
Shares withheld for taxes shares   (340,000)        
Ending balance shares at Dec. 31, 2018   45,124,000