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Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data | Total | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Common Stock [Member] | Treasury Stock [Member] | Additional Paid-in Capital [Member]
--- | --- | --- | --- | --- | --- | ---
Balance - beginning of year at Dec. 31, 2008 | $ 114,506 | $ 94,882 | $ (8) | $ 1,824 | $ 0 | $ 17,808
Balance - beginning of year (in shares) at Dec. 31, 2008 |  |  |  | 27,374,020 |  |
Net earnings | 26,785 | 26,785 | 0 | 0 | 0 | 0
Other comprehensive income (loss) | 161 | 0 | 161 | 0 | 0 | 0
Dividends | (3,091) | (3,091) | 0 | 0 | 0 | 0
Shares issued under employee benefit plans and other | 430 | 0 | 0 | 2 | 0 | 428
Shares issued under employee benefit plans and other (in shares) |  |  |  | 24,413 |  |
Shares and options issued under stock plans and an income tax benefit | 8,352 | 0 | 0 | 47 | 0 | 8,305
Shares and options issued under stock plans (in shares) |  |  |  | 698,846 |  |
Balance - end of year at Dec. 31, 2009 | 147,143 | 118,576 | 153 | 1,873 | 0 | 26,541
Balance - end of year (in shares) at Dec. 31, 2009 |  |  |  | 28,097,279 |  |
Net earnings | 33,277 | 33,277 | 0 | 0 | 0 | 0
Other comprehensive income (loss) | (702) | 0 | (702) | 0 | 0 | 0
Dividends | (4,311) | (4,311) | 0 | 0 | 0 | 0
Treasury shares purchased | (937) | 0 | 0 | 0 | (937) | 0
Treasury shares purchased (in shares) |  |  |  |  | (29,143) |
Shares issued under employee benefit plans and other | 431 | 0 | 0 | 1 | 0 | 430
Shares issued under employee benefit plans and other (in shares) |  |  |  | 17,065 |  |
Shares and options issued under stock plans and an income tax benefit | 12,566 | 0 | 0 | 43 | 937 | 11,586
Shares and options issued under stock plans (in shares) |  |  |  | 637,981 | 29,143 |
Balance - end of year at Dec. 31, 2010 | 187,467 | 147,542 | (549) | 1,917 | 0 | 38,557
Balance - end of year (in shares) at Dec. 31, 2010 | 0 |  |  | 28,752,325 | 0 |
Net earnings | 38,765 | 38,765 | 0 | 0 | 0 | 0
Other comprehensive income (loss) | (389) | 0 | (389) | 0 | 0 | 0
Dividends | (5,237) | (5,237) | 0 | 0 | 0 | 0
Treasury shares purchased | (109) | 0 | 0 | 0 | (109) | 0
Treasury shares purchased (in shares) |  |  |  |  | (19,545) |
Shares issued under employee benefit plans and other | 475 | 0 | 0 | 1 | 51 | 423
Shares issued under employee benefit plans and other (in shares) |  |  |  | 10,962 | 1,280 |
Shares and options issued under stock plans and an income tax benefit | 11,037 | 0 | 0 | 26 | 58 | 10,953
Shares and options issued under stock plans (in shares) |  |  |  | 402,434 | 18,265 |
Balance - end of year at Dec. 31, 2011 | $ 232,009 | $ 181,070 | $ (938) | $ 1,944 | $ 0 | $ 49,933
Balance - end of year (in shares) at Dec. 31, 2011 |  |  |  | 29,165,721 | 0 |

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