Restructuring Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 43	$ 0	$ 335	$ 0
Percent of employee base impacted			50.00%
Employee Severance and Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring costs			$ 301
Asset Impairments
Restructuring Cost and Reserve [Line Items]
Restructuring costs			$ 34