Income Taxes (Details Textual) (USD $)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Income Tax Expense (Benefit)	$ 37,000	$ (53,000)
Income Taxes (Textual) [Abstract]
Unrecognized tax benefits	2,400,000		3,400,000
Unrecognized tax benefits that would impact effective tax rate	577,000		670,000
Accrued for interest and penalties	113,000		140,000
Reduction in gross unrecognized tax benefits	$ 27,000

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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This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

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