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Income Taxes (Details) (USD $)	3 Months Ended
Income Taxes (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Investments, Owned, Federal Income Tax Note [Line Items]
Deferred tax assets	$ 3,178,000		$ 3,164,000
Income tax expense (benefit)	$ 847,000	$ 1,274,000
Effective income tax rate	34.00%	33.00%

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

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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