Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Leases [Abstract]
Operating Leases, Rent Expense, Net	$ 400	$ 1,400	$ 1,800
Operating Leases, Future Minimum Payments Receivable, Current	2,002
Proceeds from Rents Received	2,200	$ 900
Operating Leases, Future Minimum Payments Receivable, in Two Years	1,632
Operating Leases, Future Minimum Payments Receivable, in Three Years	1,325
Operating Leases, Future Minimum Payments Receivable, in Four Years	1,367
Operating Leases, Future Minimum Payments Receivable, in Five Years	1,410
Operating Leases, Future Minimum Payments Receivable, Thereafter	1,800
Operating Leases, Future Minimum Payments Receivable	$ 9,536