Leases Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Operating Leases, Rent Expense	$ 358	$ 334	$ 1,038	$ 995
Short-term Lease Payments	72	71	244	231
Lease, Cost	$ 430	$ 405	$ 1,282	$ 1,226