Accrued Expenses (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011 states	Dec. 31, 2010
Accrued Expenses [Abstract]
Accrued wages	$ 1,292	$ 2,290
Reserve for unclaimed property	752	993
Other accrued expenses	2,545	2,890
Accrued Expenses	4,589	6,173
Reversal of accued expense	$ 1,000	$ 300	$ 1,600
Number of States with Voluntary Compliance Agreements		12