Description of Business and Basis of Presentation Out of period adjustment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2010	Dec. 31, 2008
Goodwill adjustment out of period 1	$ 772	$ 200
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	1,019
Deferred Tax Liabilities, Goodwill and Intangible Assets	316
Impact of Restatement on Opening Retained Earnings, Net of Tax	$ 703