Assets and liabilities as well as costs of operating and finance leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Liabilities
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization	$ 608		$ 608		$ 496
Operating leases	73	$ 68	147	$ 147
Amortization of leased assets	77	25	112	51
Interest on finance leases	41	36	82	69
Total lease cost	$ 191	$ 129	$ 341	$ 267
Operating leases	6 years 292 days		6 years 292 days		6 years 328 days 12 hours
Financing leases	22 years		22 years		23 years 6 months
Weighted Average Discount Rate 1
Operating leases	3.70%		3.70%		3.60%
Financing leases	3.40%		3.40%		5.00%
Assets And Liabilities [Member]
Assets
Operating	$ 910		$ 910		$ 1,021
Finance	3,968		3,968		3,791
Total Leased Assets	4,878		4,878		4,812
Liabilities
Operating	910		910		1,021
Finance	4,330		4,330		4,107
Total lease liabilities	$ 5,240		$ 5,240		$ 5,128