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Restructuring (Details Textual) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended	6 Months Ended
	Sep. 30, 2011	Jun. 30, 2012	Jun. 30, 2012
Restructuring (Textual) [Abstract]
Restructuring expenses	$ 1,237	$ (2)	$ 11

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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