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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, 2014 9,520,067        
Beginning balance at Dec. 31, 2014 $ 95 $ 116,802 $ 130,571 $ (1,833) $ 245,635
Net loss (29,388) (29,388)
Unrealized gain (loss) on cash flow hedges, net of tax 57 57
Pension liability adjustment, net of tax 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 benefit from stock compensation plans 19 19
Tax deficiency from stock compensation plans (352) (352)
Share-based compensation expense 1,774 1,774
Balances (in shares) at Dec. 31, 2015 9,564,752        
Ending balance at Dec. 31, 2015 $ 96 117,819 101,183 (1,538) 217,560
Net loss (9,263) (9,263)
Unrealized gain (loss) on cash flow hedges, net of tax (76) (76)
Pension liability adjustment, net of tax 131 131
Issuance of common stock under stock compensation plans (in shares) 36,259        
Issuance of common stock under stock compensation plans (31) (31)
Tax deficiency from stock compensation plans (909) (909)
Share-based compensation expense 1,801 1,801
Balances (in shares) at Dec. 31, 2016 9,601,011        
Ending balance at Dec. 31, 2016 $ 96 118,680 91,920 (1,483) 209,213
Net loss (10,163) (10,163)
Unrealized gain (loss) on cash flow hedges, net of tax (19) (19)
Pension liability adjustment, net of tax 57 57
Issuance of common stock under stock compensation plans (in shares) 18,744        
Issuance of common stock under stock compensation plans (24) (24)
Share-based compensation expense 1,200 1,200
Balances (in shares) at Dec. 31, 2017 9,619,755        
Ending balance at Dec. 31, 2017 $ 96 $ 119,856 $ 81,757 $ (1,445) $ 200,264