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Note 3 - Loans and Allowance for Loan Losses - Loan Portfolio (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Loans (Note 3)	$ 1,016,848	$ 1,069,668
Allowance for loan losses (Note 3)	(7,688)	(7,593)	$ (4,057)	$ (4,673)
Loans, net	1,009,160	1,062,075
Agricultural [Member]
Loans (Note 3)	64,819	53,735
Allowance for loan losses (Note 3)	(448)	(257)	(471)	(481)
Commercial and Industrial [Member]
Loans (Note 3)	203,024	303,527
Allowance for loan losses (Note 3)	(1,454)	(1,327)	(655)	(892)
Consumer Portfolio Segment [Member]
Loans (Note 3)	35,174	34,014
Allowance for loan losses (Note 3)	(290)	(317)	(270)	(254)
Commercial Real Estate Portfolio Segment [Member]
Loans (Note 3)	525,884	469,247
Allowance for loan losses (Note 3)	(3,705)	(4,178)	(1,663)	(1,926)
Construction Real Estate [Member]
Loans (Note 3)	19,066	16,639
Allowance for loan losses (Note 3)	(110)	(97)	(76)	(38)
Residential Portfolio Segment [Member]
Loans (Note 3)	168,881	192,506
Allowance for loan losses (Note 3)	$ (671)	$ (1,300)	$ (640)	$ (537)

X

- 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
-Section S99
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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

+ References

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