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Consolidated Statement of Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Retained Earnings
Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2017   12,462,000      
Beginning balance at Dec. 31, 2017 $ 13,078 $ 125 $ 0 $ 16,550 $ (3,597)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation expense 915   915    
Repurchase and retirement of common stock (in shares)   (500,000)      
Repurchase and retirement of common stock (5,292) $ (5) (915) (4,372)  
Foreign currency translation adjustment (617)       (617)
Net income $ 4,661     4,661  
Ending balance shares (in shares) at Dec. 31, 2018 11,962,000 11,962,000      
Ending balance at Dec. 31, 2018 $ 14,059 $ 120 0 18,153 (4,214)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation expense 993   993    
Repurchase and retirement of common stock (in shares)   (737,000)      
Repurchase and retirement of common stock (10,816) $ (5) (2,703) (8,108)  
Foreign currency translation adjustment 762       762
Net income $ 4,155     4,155  
Exercise of stock options and taxes paid for net share settlement of equity awards (in shares) 300,000 254,000      
Proceeds from exercise of stock options, net of share settlement $ 1,710   1,710    
Ending balance shares (in shares) at Dec. 31, 2019 11,479,000 11,479,000      
Ending balance at Dec. 31, 2019 $ 10,863 $ 115 $ 0 $ 14,200 $ (3,452)