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Earnings Per Common Share And Share Awards Computation Of Basic And Diluted Earnings Per Share (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Abstract]
Net income attributable to the Company	$ 5,515,798	$ 3,158,185	$ 12,898,203	$ 7,939,812
Weighted average common shares outstanding - Basic	2,069,081	2,071,605	2,059,226	2,090,369
Incremental shares outstanding assuming the exercise of dilutive stock options and SARs (share settled)	5,859	36,921	24,334	33,753
Weighted average common shares outstanding - Diluted	2,074,940	2,108,526	2,083,560	2,124,122
Basic Earnings per Common Share	$ 2.67	$ 1.52	$ 6.26	$ 3.80
Diluted Earnings per Common Share	$ 2.66	$ 1.50	$ 6.19	$ 3.74

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