Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets tax losses total	$ 22,900,000
Tax credit carryforwards	10,785,000	10,019,000
Combined future tax benefits	33,700,000
Valuation allowance	(26,019,000)	(25,358,000)
Cumulative undistributed earnings	32,400,000
Gross unrecognized tax benefits	8,100,000	11,900,000
Accrued interest and penalties	3,100,000	3,500,000
Unrecognized tax benefits that, if recognized, would change the effective tax rate	3,700,000	6,500,000
Interest and penalties	$ 400,000	$ 1,800,000