Employee Benefit Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Selling, general and administrative expenses
Plan expenses	$ 24	$ 36
Matching contributions	$ 156	$ 238
Hudson Plan
Period of service required in order to participate in plan	30 days
DBG Plan
Period of service required in order to participate in plan	6 months
Hours of service required in order to receive employer contribution	1,000
RG Plan
Period of service required in order to participate in plan	90 days
Hours of service required in order to receive employer contribution	1,000