Income Taxes (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Reconciliation of effective income tax rate
Effective income tax rate	21.70%	(64.60%)	26.60%	33.20%
Income tax benefit	$ (946,000)	$ (1,608,000)	$ (2,617,000)	$ (1,650,000)
Liability for uncertain tax positions	$ 0	$ 0	$ 0	$ 0