Leases - Schedule of Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Lessee, Lease, Description [Line Items]
Operating lease cost		$ 39
Amortization of leased assets	$ 293	934
Interest on lease liabilities	161	174
Net lease cost	584	1,214
Cost of sales
Lessee, Lease, Description [Line Items]
Operating lease cost	39
Selling, general and administrative expenses
Lessee, Lease, Description [Line Items]
Operating lease cost	$ 91	$ 67