Financial instruments with off-balance-sheet risk (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fixed [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Commitments to extend credit	$ 5,327	$ 7,112
Unused lines of credit	3,962	4,544
Totals	9,289	11,656
Variable [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Commitments to extend credit	6,966	16,090
Unused lines of credit	18,859	14,162
Totals	$ 25,825	$ 30,252

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant