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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands | Common Stock [Member] | Additional Paid- In Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income [Member] | Treasury Stock [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2013 | $ 13 |  | $ 97,700 | $ 703 |  | $ 98,416
Balance (in shares) at Dec. 31, 2013 | 13,143 |  |  |  |  |
Share-based compensation |  | $ 3,918 |  |  |  | 3,918
Share-based compensation (in shares) | 387 |  |  |  |  |
Net shares repurchased for employee taxes |  | (1,152) |  |  |  | (1,152)
Net shares repurchased for employee taxes (in shares) | (38) |  |  |  |  |
Share-based compensation tax benefit |  | 275 |  |  |  | 275
Treasury stock purchases |  |  |  |  | $ (33,894) | (33,894)
Treasury stock retirement | $ (1) | (1,909) | (31,984) |  | 33,894 |
Treasury stock retirement (in shares) | (1,127) |  |  |  |  |
Net income |  |  | 13,181 |  |  | 13,181
Other comprehensive loss |  |  |  | (268) |  | (268)
Balance at Dec. 31, 2014 | $ 12 | 1,132 | 78,897 | 435 |  | 80,476
Balance (in shares) at Dec. 31, 2014 | 12,365 |  |  |  |  |
Options exercised by executives and directors |  | 44 |  |  |  | 44
Options exercised by executives and directors (in shares) | 2 |  |  |  |  |
Share-based compensation |  | 3,081 |  |  |  | 3,081
Share-based compensation (in shares) | 51 |  |  |  |  |
Net shares repurchased for employee taxes |  | (1,296) |  |  |  | (1,296)
Net shares repurchased for employee taxes (in shares) | (40) |  |  |  |  |
Share-based compensation tax benefit |  | 247 |  |  |  | 247
Cash dividends declared to stockholders |  |  | (3,013) |  |  | (3,013)
Treasury stock purchases |  |  |  |  | (10,516) | (10,516)
Treasury stock retirement |  | (3,208) | (7,308) |  | $ 10,516 |
Treasury stock retirement (in shares) | (364) |  |  |  |  |
Net income |  |  | 20,058 |  |  | 20,058
Other comprehensive loss |  |  |  | (497) |  | (497)
Balance at Dec. 31, 2015 | $ 12 |  | 88,634 | (62) |  | 88,584
Balance (in shares) at Dec. 31, 2015 | 12,014 |  |  |  |  |
Options exercised by executives and directors |  | 299 |  |  |  | 299
Options exercised by executives and directors (in shares) | 12 |  |  |  |  |
Share-based compensation |  | 3,428 |  |  |  | 3,428
Share-based compensation (in shares) | 41 |  |  |  |  |
Net shares repurchased for employee taxes |  | (1,285) | (57) |  |  | (1,342)
Net shares repurchased for employee taxes (in shares) | (40) |  |  |  |  |
Share-based compensation tax benefit |  | 230 |  |  |  | 230
Cash dividends declared to stockholders |  |  | (12,915) |  |  | (12,915)
Net income |  |  | 17,835 |  |  | 17,835
Other comprehensive loss |  |  |  | (103) |  | (103)
Balance at Dec. 31, 2016 | $ 12 | $ 2,672 | $ 93,497 | $ (165) |  | $ 96,016
Balance (in shares) at Dec. 31, 2016 | 12,027 |  |  |  |  |

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