Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Leases [Abstract]
Operating lease cost	$ 116	$ 116
Finance lease expense:
Amortization of leased assets	6	4
Interest on lease liabilities	0	1
Total finance lease cost	6	5
Total lease expense	$ 122	$ 121