Note 5 - Foreclosed Assets- Roll Forward of Foreclosed Assets (Details) - USD ($)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Beginning balance	$ 157,000	$ 186,000
New foreclosed properties	4,473,000	33,000
Capitalized improvements	0	47,000
Valuation adjustments	(420,000)	(0)
Valuation reductions from sales	193,000	0
Sales	(3,678,000)	(109,000)
Ending balance	$ 725,000	$ 157,000

Carrying amount as of the balance sheet date of all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance; includes real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5162-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4437-111522

Name:	us-gaap_ForeclosedAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant