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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
Total
Balances (in shares) at Dec. 31, 2012 9,382,994        
Balances at Dec. 31, 2012 $ 94 $ 112,230 $ 149,381 $ (2,273) $ 259,432
Net loss     (923)   (923)
Foreign currency cash flow hedge, net of tax expense of $59       99 99
Pension liability adjustment, net of tax expense of $540       913 913
Issuance of common stock under stock compensation plans (in shares) 66,305        
Issuance of common stock under stock compensation plans   (730)     (730)
Tax deficiency from stock compensation plans   (1)     (1)
Stock-based compensation expense   3,060     3,060
Balances (in shares) at Dec. 31, 2013 9,449,299        
Balances at Dec. 31, 2013 $ 94 114,559 148,458 (1,261) 261,850
Net loss     (17,887)   (17,887)
Foreign currency cash flow hedge, net of tax expense of $59       15 15
Pension liability adjustment, net of tax expense of $540       (587) (587)
Issuance of common stock under stock compensation plans (in shares) 70,768        
Issuance of common stock under stock compensation plans $ 1 (1,256)     (1,255)
Stock-based compensation expense   2,946     2,946
Balances (in shares) at Dec. 31, 2014 9,520,067        
Balances at Dec. 31, 2014 $ 95 116,802 130,571 (1,833) 245,635
Tax benefit from stock compensation plans   553     553
Net loss     (29,388)   (29,388)
Foreign currency cash flow hedge, net of tax expense of $59       57 57
Pension liability adjustment, net of tax expense of $540       238 238
Issuance of common stock under stock compensation plans (in shares) 44,685        
Issuance of common stock under stock compensation plans $ 1 (424)     (423)
Tax deficiency from stock compensation plans   (352)     (352)
Stock-based compensation expense   1,774     1,774
Balances (in shares) at Dec. 31, 2015 9,564,752        
Balances at Dec. 31, 2015 $ 96 117,819 $ 101,183 $ (1,538) 217,560
Tax benefit from stock compensation plans   $ 19     $ 19