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Acquisition (Details 2) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Unaudited pro forma information |  |  |  |
Revenue | $ 34,822 | $ 39,862 | $ 104,316 | $ 113,494
Net income (loss) | (52) | 1,569 | 495 | 509
Net income (loss) applicable to common stockholders | $ (175) | $ 1,502 | $ 233 | $ 318

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