Income Taxes (Narrative) (Details) (USD $)	12 Months Ended											12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Federal	Dec. 31, 2012 Foreign	Dec. 31, 2012 State	Dec. 31, 2011 Research Tax Credit Carryforward	Dec. 31, 2010 Research Tax Credit Carryforward	Sep. 30, 2010 Research Tax Credit Carryforward	Dec. 31, 2011 Research Tax Credit Carryforward Federal	Dec. 31, 2011 Research Tax Credit Carryforward State	Dec. 31, 2012 Scenario, Forecast Minimum	Dec. 31, 2012 Scenario, Forecast Maximum
Operating Loss Carryforwards [Line Items]
Federal statutory rate	35.00%	34.00%	34.00%	35.00%
Net operating loss carryforwards					$ 10,600,000	$ 3,500,000
Undistributed earnings of foreign subsidiaries	125,731,000
Tax credit							22,000		1,100,000	252,000	164,000
Additional unrecognized tax benefit that would affect our annual effective tax rate	257,000	235,000					42,000
Unrecognized tax benefits	257,000	235,000	193,000					193,000
Additions for tax positions related to prior years	22,000	0
Tax Benefit from the American Taxpayer Relief Act												$ 300,000	$ 400,000