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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
Total
Balance (in shares) at Dec. 31, 2016 18,958        
Balance at Dec. 31, 2016 $ 78,123 $ 9,246 $ (47,332) $ (22,295) $ 17,742
Share-based compensation (in shares) 94        
Share-based compensation $ 767 327 1,094
Vested restricted stock issued (in shares) 44        
Vested restricted stock issued $ 327 (327)
Shares cancelled to pay tax liability (in shares) (65)        
Shares cancelled to pay tax liability $ (651) (651)
Other comprehensive income - pension 612 612
Net income (loss) 11,829 11,829
Balance (in shares) at Sep. 30, 2017 19,031        
Balance at Sep. 30, 2017 $ 78,566 9,246 (35,503) (21,683) 30,626
Balance (in shares) at Dec. 31, 2017 19,040        
Balance at Dec. 31, 2017 $ 78,584 9,246 (36,432) (20,254) 31,144
Share-based compensation (in shares) 71        
Share-based compensation $ 845 402 1,247
Vested restricted stock issued (in shares) 48        
Vested restricted stock issued $ 402 (402)
Shares cancelled to pay tax liability (in shares) (45)        
Shares cancelled to pay tax liability $ (532) (532)
Other comprehensive income - pension 555 555
Net income (loss) (3,161) (3,161)
Balance (in shares) at Sep. 30, 2018 19,114        
Balance at Sep. 30, 2018 $ 79,299 $ 9,246 $ (39,593) $ (19,699) $ 29,253