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13) Acquisitions: Unaudited pro forma (Details) (USD $) | 9 Months Ended
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Sep. 30, 2013 | Sep. 30, 2012
Details |  |
ProForma Revenues | $ 166,737,314 | $ 167,607,664
ProForma Net Earnings | 6,099,002 | 9,246,699
ProForma Net Earnings per Class A equivalent common share | $ 0.55 | $ 0.92
ProForma Net Earnings per Class A equivalent common share assuming dilution | $ 0.52 | $ 0.92

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