Leases - Lease Cost and Lease BS Info (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Jan. 01, 2019
Lease, Cost [Abstract]
Operating Lease, Cost	$ 130
Finance Lease, Cost [Abstract]
Finance Lease, Right-of-Use Asset, Amortization	53
Finance Lease, Interest Expense	3
Total Finance Lease Cost	56
Lessee Lease Description [Abstract]
Operating Lease, Right-of-Use Asset	1,099	$ 1,201
Finance Lease, Right-of-Use Asset	397	329
Right of Use Assets	1,496	1,530
Operating Lease, Liability, Current	528	512
Finance Lease, Liability, Current	177	131
Current portion of lease liability	705	643
Operating Lease, Liability, Noncurrent	880	1,017
Finance Lease, Liability, Noncurrent	211	188
Lease liability, net of current portion	$ 1,091	$ 1,205