Benefit Plans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Change in Benefit Obligation
Benefit obligation at beginning of year	$ 3,294	$ 2,791
Service cost	0	0
Interest cost	141	145
Plan participants' contributions	0	0
Amendments	0	0
Actuarial loss (gain)	217	571
Business combinations	0	0
Divestitures	0	0
Curtailments	0	0
Settlements	(326)	0
Special termination benefits	0	0
Benefits paid	(19)	(213)
Currency translation adjustment	0	0
Benefit obligation at end of year	3,307	3,294
Change in Plan Assets
Fair value of plan assets at beginning of year	2,513	2,591
Actual return on plan assets	323	(65)
Employer contribution	200	200
Business combinations	0	0
Divestitures	0	0
Settlements	(326)	0
Plan participants' contributions	0	0
Benefits paid	(19)	(213)
Administrative Expenses Paid	(1)	0
Currency Translation Adjustment	0	0
Fair value of plan assets at end of year	2,690	2,513
Funded status	(617)	(781)
Amounts Recognized in the Statement of Financial Position consists of:
Noncurrent assets	0	0
Current liabilities	0	0
Noncurrent liabilities	(617)	(781)
Net amount recognized	$ (617)	$ (781)