Note 13 - Commitments and Contingencies - Outstanding Commitments to Originate Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Total commitments	$ 3,665	$ 4,220
Unused Line of Credit [Member]
Total commitments	2,872	4,001
Commitments to Extend Credit [Member]
Total commitments	$ 793	$ 219

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

No definition available.

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