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Income Taxes (Details 1) (USD $)	12 Months Ended
Income Taxes (Details 1) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Schedule of Income tax expense , federal statutory rate
Expected tax expense	$ 6,214,573	$ 5,720,859
State income taxes, net of federal benefit	833,024	751,785
Change in valuation allowance	(10,367)	59,553
Non-deductible items	209,657	193,534
Income Tax Expense (Benefit)	$ 7,246,887	$ 6,725,731

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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- Definition

The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to changes in the valuation allowance for deferred tax assets in the period.

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- Definition

The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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