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Income Taxes (Details Textual) (USD $) In Thousands, unless otherwise specified			3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 Maximum [Member]	Mar. 31, 2013 Minimum [Member]
Income Taxes (Textual) [Abstract]
Open tax years			2012	2009
Income Taxes (Additional Textual) [Abstract]
Unrecognized tax benefits	$ 0	$ 0
Accrued interest or penalties	$ 0	$ 0

This element represents the amount of statutory penalties accrued as of the date of the statement of financial position 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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