Assets and liabilities as well as costs of operating and finance leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Liabilities
Operating leases	$ 293	$ 295
Amortization of leased assets	223	101
Interest on finance leases	163	136
Total lease cost	$ 679	$ 532
Operating leases	5 years 328 days 12 hours	6 years 328 days 12 hours
Financing leases	21 years 6 months	23 years 6 months
Weighted Average Discount Rate 1
Operating leases	3.63%	3.61%
Financing leases	3.74%	4.97%
Assets And Liabilities [Member]
Assets
Operating	$ 1,175	$ 1,021
Finance	3,856	3,791
Total Leased Assets	5,031	4,812
Liabilities
Operating	1,175	1,021
Finance	4,262	4,107
Total lease liabilities	$ 5,437	$ 5,128