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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Common Stock [Member]
Treasury Stock [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Total
Balance at Dec. 31, 2014 $ 126,339   $ (549) $ 154,991 $ 280,781
Net income (loss)       (26,777) (26,777)
Repurchase of common stock   $ (699)     (699)
Payment of dividends       (879) (879)
Employee stock purchases 30       30
Stock-based compensation 1,759       1,759
Changes in fair value of hedges     479   479
Other 1       1
Balance at Dec. 31, 2015 128,129 (699) (70) 127,335 254,695
Net income (loss)       (1,078) (1,078)
Payment of dividends       (877) (877)
Employee stock purchases 46       46
Stock-based compensation 444 90     534
Changes in fair value of hedges     $ 70   70
Balance at Dec. 31, 2016 128,619 (609)   125,380 253,390
Net income (loss)       18,963 18,963 [1]
Payment of dividends       (878) (878)
Employee stock purchases 10       10
Stock-based compensation 824 272     1,096
Other       2 2
Balance at Dec. 31, 2017 $ 129,453 $ (337)   $ 143,467 $ 272,583
[1] Includes a $6.2 million tax benefit related to the U.S. Tax Cuts and Jobs Act.