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Consolidated Statements Of Stockholders' Equity (USD $) In Thousands, except Share data | Total | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Income/(loss) | Non-Controlling Interest | Treasury Stock
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2009 | $ 153,087 | $ 2,958 | $ 41,529 | $ 113,496 | $ (1,743) |  | $ (3,153)
Beginning Balance (in shares) at Dec. 31, 2009 |  | 29,575,562 |  |  |  |  | 2,260,996
Stocks issued under ESPP (in shares) |  | 60,047 |  |  |  |  |
Stocks issued under ESPP | 486 | 6 | 480 |  |  |  |
Cash dividends on common stock ($0.22 per share in 2012, $0.08 per share in 2011 and $0.03 per share in 2010 ) | (819) |  |  | (819) |  |  |
Foreign currency translation adjustment, net | 201 |  |  |  | 201 |  |
Stock based compensation | 1,122 |  | 1,122 |  |  |  |
Changes in fair value of interest swap | 1,094 |  |  |  | 1,094 |  |
Stock options exercised and grants of restricted stock units, Shares |  | 100,319 |  |  |  |  |
Stock options exercised and grants of restricted stock units | 282 | 10 | 272 |  |  |  |
Net (loss) income | 10,984 |  |  | 10,984 |  |  |
Ending Balance at Dec. 31, 2010 | 166,437 | 2,974 | 43,403 | 123,661 | (448) |  | (3,153)
Ending Balance (in shares) at Dec. 31, 2010 |  | 29,735,928 |  |  |  |  | 2,260,996
Stocks issued under ESPP (in shares) |  | 54,933 |  |  |  |  |
Stocks issued under ESPP | 465 | 6 | 459 |  |  |  |
Cash dividends on common stock ($0.22 per share in 2012, $0.08 per share in 2011 and $0.03 per share in 2010 ) | (2,205) |  |  | (2,205) |  |  |
Foreign currency translation adjustment, net | (933) |  |  |  | (933) |  |
Stock based compensation | 1,994 |  | 1,994 |  |  |  |
Changes in fair value of interest swap | (869) |  |  |  | (869) |  |
Stock options exercised and grants of restricted stock units, Shares |  | 54,186 |  |  |  |  |
Stock options exercised and grants of restricted stock units | 115 | 5 | 110 |  |  |  |
Net (loss) income | 22,068 |  |  | 22,068 |  |  |
Ending Balance at Dec. 31, 2011 | 187,072 | 2,985 | 45,966 | 143,524 | (2,250) |  | (3,153)
Ending Balance (in shares) at Dec. 31, 2011 | 29,845,047 | 29,845,047 |  |  |  |  | 2,260,996
Stocks issued under ESPP (in shares) |  | 40,116 |  |  |  |  |
Stocks issued under ESPP | 551 | 4 | 547 |  |  |  |
Cash dividends on common stock ($0.22 per share in 2012, $0.08 per share in 2011 and $0.03 per share in 2010 ) | (6,148) |  |  | (6,148) |  |  |
Foreign currency translation adjustment, net | 330 |  |  |  | 330 |  |
Stock based compensation | 2,950 |  | 2,950 |  |  |  |
Changes in fair value of interest swap | 158 |  |  |  | 158 |  |
Stock options exercised and grants of restricted stock units, Shares |  | 881,567 |  |  |  |  | 49,638
Stock options exercised and grants of restricted stock units | 2,676 | 88 | 4,239 |  |  |  | (1,651)
Excess tax benefits from share based payment arrangements | 621 |  | 621 |  |  |  |
Non-controlling interest contribution | 400 |  |  |  |  | 400 |
Net (loss) income | 36,826 |  |  | 36,867 |  | (41) |
Ending Balance at Dec. 31, 2012 | $ 225,436 | $ 3,077 | $ 54,323 | $ 174,243 | $ (1,762) | $ 359 | $ (4,804)
Ending Balance (in shares) at Dec. 31, 2012 | 30,766,730 | 30,766,730 |  |  |  |  | 2,310,634

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