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Consolidated Statement 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, 2012 | $ 225,436 | $ 3,077 | $ 54,323 | $ 174,243 | $ (1,762) | $ 359 | $ (4,804)
Beginning Balance (in shares) at Dec. 31, 2012 | 30,766,730 | 30,766,730 |  |  |  |  | 2,310,634
Stocks issued under ESPP (in shares) |  | 12,263 |  |  |  |  |
Stocks issued under ESPP | 378 | 2 | 376 |  |  |  |
Cash dividends on common stock ($0.05 per share) | (1,976) |  |  | (1,976) |  |  |
Foreign currency translation adjustment, net | 407 |  |  |  | 407 |  |
Stock based compensation | 688 |  | 688 |  |  |  |
Change in fair value of interest rate swaps | 178 |  |  |  | 178 |  |
Stock options exercised and grants of restricted stock units (in shares) |  | 144,550 |  |  |  |  |
Stock options exercised and grants of restricted stock units | 49 | 15 | 34 |  |  |  |
Excess tax benefits from share based payment arrangements | 57 |  | 57 |  |  |  |
Net income (loss) | 16,819 |  |  | 16,915 |  | (96) |
Ending Balance at Mar. 31, 2013 | 242,036 | 3,094 | 55,478 | 189,182 | (1,177) | 263 | (4,804)
Ending Balance (in shares) at Mar. 31, 2013 |  | 30,923,543 |  |  |  |  | 2,310,634
Cash dividends on common stock ($0.05 per share) | (1,413) |  |  | (1,413) |  |  |
Foreign currency translation adjustment, net | (476) |  |  |  | (476) |  |
Stock based compensation | 1,058 |  | 1,058 |  |  |  |
Change in fair value of interest rate swaps | 174 |  |  |  | 174 |  |
Stock options exercised and grants of restricted stock units (in shares) |  | 48,505 |  |  |  |  |
Stock options exercised and grants of restricted stock units | 101 | 5 | 96 |  |  |  |
Net income (loss) | 8,266 |  |  | 8,386 |  | (120) |
Ending Balance at Jun. 30, 2013 | $ 249,746 | $ 3,099 | $ 56,632 | $ 196,155 | $ (1,479) | $ 143 | $ (4,804)
Ending Balance (in shares) at Jun. 30, 2013 | 30,972,048 | 30,972,048 |  |  |  |  | 2,310,634

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