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Income Taxes Provision for income taxes charged to operations (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Current tax expense	$ 1,160us-gaap_CurrentIncomeTaxExpenseBenefit	$ 2,315us-gaap_CurrentIncomeTaxExpenseBenefit	$ 759us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred tax expense (benefit)	1,181us-gaap_DeferredIncomeTaxExpenseBenefit	(384)us-gaap_DeferredIncomeTaxExpenseBenefit	1,207us-gaap_DeferredIncomeTaxExpenseBenefit
Total income tax expense	$ 2,341us-gaap_IncomeTaxExpenseBenefit	$ 1,931us-gaap_IncomeTaxExpenseBenefit	$ 1,966us-gaap_IncomeTaxExpenseBenefit

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.