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Income Taxes (Details Textual) (USD $)	3 Months Ended		9 Months Ended
Income Taxes (Details Textual) (USD $)	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Income Taxes (Textual) [Abstract]
Provisions for income taxes	$ 3,857,000	$ 4,433,000	$ 27,110,000	$ 33,582,000
Percentage of pre-tax income			36.00%	37.00%
State NOL carryforwards	2,600,000		2,600,000		700,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Remaining state tax NOL carryforwards					$ 8,000,000

- 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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