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Reorganization (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Summary of rolls forward the activity in the reorganization accrual
Accrual Beginning Balance	$ 375	$ 446
Additions	1,421	375
Cash payments	(1,782)	(446)
Accrual Ending Balance	14	375
Workforce Reduction [Member]
Summary of rolls forward the activity in the reorganization accrual
Accrual Beginning Balance	375
Additions	1,421	375
Cash payments	(1,782)
Accrual Ending Balance	14	375
Facility Consolidation [Member]
Summary of rolls forward the activity in the reorganization accrual
Accrual Beginning Balance		446
Cash payments		$ (446)

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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