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Consolidated Statements of Stockholders' Equity - 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, 2013 14,289        
Balance at Dec. 31, 2013 $ 143 $ 70,606 $ 66,585 $ (1,699) $ 135,635
Issuance of common stock for equity awards (in shares) 697        
Issuance of common stock for equity awards $ 7 2,048     2,055
Tax benefit related to equity awards   9,626     9,626
Stock-based compensation expense   1,607     1,607
Retirement of common stock for minimum tax withholdings (in shares) (134)        
Retirement of common stock for minimum tax withholdings $ (1) (6,347)     (6,348)
Net income     38,319   38,319
Other comprehensive loss       (2,796) (2,796)
Balance (in shares) at Dec. 31, 2014 14,852        
Balance at Dec. 31, 2014 $ 149 77,540 104,904 (4,495) 178,098
Issuance of common stock for equity awards (in shares) 185        
Issuance of common stock for equity awards $ 1 1,073     1,074
Tax benefit related to equity awards   847     847
Stock-based compensation expense   2,225     2,225
Net income     30,758   30,758
Other comprehensive loss       (2,154) (2,154)
Balance (in shares) at Dec. 31, 2015 15,037        
Balance at Dec. 31, 2015 $ 150 81,685 135,662 (6,649) 210,848
Issuance of common stock for equity awards (in shares) 121        
Issuance of common stock for equity awards $ 1 1,006     1,007
Tax benefit related to equity awards   647     647
Stock-based compensation expense   3,392     3,392
Net income     32,547   32,547
Other comprehensive loss       (668) (668)
Balance (in shares) at Dec. 31, 2016 14,627        
Balance at Dec. 31, 2016 $ 146 61,735 $ 168,209 $ (7,317) 222,773
Repurchase of common stock (in shares) (531)        
Repurchase of common stock $ (5) $ (24,995)     $ (25,000)