Leases Lease Cash Flows Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Leases Cash Flows [Abstract]
Operating Lease, Payments	$ 2,230	$ 2,759
Finance Lease, Interest Expense	5	49
Finance Lease, Right-of-Use Asset, Amortization	$ 650	$ 1,451