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Note 4 - Loans Receivable and Credit Disclosures - Activity in Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Balance, beginning	$ 17,215	$ 12,619
Provision (credit) for loan losses	(757)	5,681
Recoveries of loans charged-off	339	325
Loans charged-off	(176)	(1,410)
Balance, ending	16,621	17,215
Construction Real Estate [Member]
Balance, beginning	725	672
Provision (credit) for loan losses	(50)	52
Recoveries of loans charged-off	0	1
Loans charged-off	0	0
Balance, ending	675	725
Family Residential Real Estate 1-4 [Member]
Balance, beginning	2,581	2,122
Provision (credit) for loan losses	(63)	471
Recoveries of loans charged-off	268	6
Loans charged-off	(34)	(18)
Balance, ending	2,752	2,581
Commercial Real Estate Portfolio Segment [Member]
Balance, beginning	8,930	5,362
Provision (credit) for loan losses	(528)	3,986
Recoveries of loans charged-off	4	26
Loans charged-off	0	(444)
Balance, ending	8,406	8,930
Agriculture Real Estate [Member]
Balance, beginning	1,595	1,326
Provision (credit) for loan losses	(11)	269
Recoveries of loans charged-off	0	0
Loans charged-off	0	0
Balance, ending	1,584	1,595
Commercial Portfolio Segment [Member]
Balance, beginning	1,453	1,458
Provision (credit) for loan losses	(175)	609
Recoveries of loans charged-off	5	14
Loans charged-off	(113)	(628)
Balance, ending	1,170	1,453
Agriculture [Member]
Balance, beginning	1,696	1,478
Provision (credit) for loan losses	92	266
Recoveries of loans charged-off	48	0
Loans charged-off	0	(48)
Balance, ending	1,836	1,696
Consumer and Other [Member]
Balance, beginning	235	201
Provision (credit) for loan losses	(22)	28
Recoveries of loans charged-off	14	278
Loans charged-off	(29)	(272)
Balance, ending	$ 198	$ 235

X

- Definition

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
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- Definition

Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

+ References

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

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-Topic 310
-SubTopic 10
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Amount of expense related to estimated loss from loan and lease transactions.

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