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6) Earnings Per Share: Schedule Of Calculation Of Numerator And Denominator In Earnings Per Share Table Text Block (Details) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Details    
Net earnings $ 2,033,266 $ 1,662,183
Weighted-average Class A equivalent common share outstanding (1) 10,935,713 10,014,795
GrantOfEmployeeStockOptions $ 995,184 $ 95,500
Pro Forma Weighted Average Shares Outstanding, Diluted 995,184 95,500
Weighted-average Class A equivalent common shares outstanding-assuming dilution (1) 11,930,897 10,110,295
Net earnings per Class A Equivalent common share (1) $ 0.19 $ 0.17
Net earnings per Class A Equivalent common share-assuming dilution (1) $ 0.17 $ 0.16