Leases (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Lease term, option to extend (up to)	10 years
Lease term, option to terminate (within)	1 year
Operating lease expense	$ 280	$ 320
Operating lease cost	230	270
Short-term lease cost	20	20
Variable lease cost	30	30
Operating lease payments	230	270
Right-of-use assets obtained in exchange for lease obligations	0	$ 3,581
Operating lease, right-of-use asset	3,000		$ 3,200
Total operating lease liabilities	$ 3,041		$ 3,230
Weighted average remaining lease term	11 years 1 month 17 days		10 years 10 months 9 days
Weighted average discount rate	3.47%		3.46%
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lease term	1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lease term	15 years