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Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Total
--- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2010 | $ 260 | $ 15,692 | $ 107,824 | $ 0 | $ 123,776
Balance (in shares) at Dec. 31, 2010 | 5,194,000 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income | 0 | 0 | 20,552 | 0 | 20,552
Stock-based compensation | 2 | 1,377 | 0 | 0 | 1,379
Stock-based compensation (in shares) |  |  |  |  | 53,000
Dividends declared | 0 | 0 | (1,415) | 0 | (1,415)
Change in fair value of interest rate swap agreements, net of tax | 0 | 0 | 0 | (692) | (692)
Balance at Dec. 31, 2011 | 262 | 17,069 | 126,961 | (692) | 143,600
Balance (in shares) at Dec. 31, 2011 | 5,247,000 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income | 0 | 0 | 21,294 | 0 | 21,294
Stock-based compensation | 3 | 1,124 | 0 | 0 | 1,127
Stock-based compensation (in shares) |  |  |  |  | 46,000
Dividends declared | 0 | 0 | (1,641) | 0 | (1,641)
Change in fair value of interest rate swap agreements, net of tax | 0 | 0 | 0 | (45) | (45)
Balance at Dec. 31, 2012 | 265 | 18,193 | 146,614 | (737) | 164,335
Balance (in shares) at Dec. 31, 2012 | 5,293,000 |  |  |  | 5,293,316
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income | 0 | 0 | 22,852 | 0 | 22,852
Stock-based compensation | 2 | 946 | 0 | 0 | 948
Stock-based compensation (in shares) |  |  |  |  | 40,000
Dividends declared | 0 | 0 | (1,868) | 0 | (1,868)
Change in fair value of interest rate swap agreements, net of tax | 0 | 0 | 0 | 536 | 536
Balance at Dec. 31, 2013 | $ 267 | $ 19,139 | $ 167,598 | $ (201) | $ 186,803
Balance (in shares) at Dec. 31, 2013 | 5,333,000 |  |  |  | 5,333,077

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