Leases (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) contract	Dec. 31, 2018 USD ($)
Lessee, Lease, Description [Line Items]
Weighted average remaining lease term	11 years 6 months 18 days
Weighted average discount rate	2.73%
Lease expense	$ 875
Lease expense		$ 795
Immediate Family Member of Board of Director [Member]
Lessee, Lease, Description [Line Items]
Number of leasing arrangements | contract	2
Lease expense	$ 89
Lease expense		$ 42