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Earnings per Share (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Basic income per share
Net income for the period - numerator	$ 4,379,071	$ 5,431,760	$ 12,671,552	$ 16,145,634
Weighted average common stock outstanding - denominator	18,459,775	18,350,186	18,455,776	18,349,044
Net income per share	$ 0.24	$ 0.3	$ 0.69	$ 0.88
Diluted income per share
Effect of dilution - Warrant
Weighted average common stock outstanding - denominator	18,459,775	18,350,186	18,455,776	18,349,044
Diluted income per share	$ 0.24	$ 0.3	$ 0.69	$ 0.88

X

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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