Commitments and Contingences (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Operating Leases
Total lease liability	$ 8,607
Right-of-use assets	$ 8,521
Weighted average remaining lease term	18 years 11 months 5 days
Weighted average discount rate	3.49%
Lease cost	$ 640
Operating lease, payments	$ 549
Rent expense		$ 701
Rent expense for closed leased properties		$ 166
Minimum [Member]
Operating Leases
Remaining lease term	3 months
Maximum [Member]
Operating Leases
Remaining lease term	25 years