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Note 3 - Loans and Allowance for Loan Losses - Impaired Loans by Loan Category (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Recorded Investment with no related allowance recorded	$ 753		$ 753		$ 572
Unpaid Principal Balance with no related allowance recorded	897		897		694
Recorded Investment with an allowance recorded	1,934		1,934		4,861
Unpaid Principal Balance with an allowance recorded	1,998		1,998		4,943
Related Allowance	215		215		503
Recorded Investment	2,687		2,687		5,433
Unpaid Principal Balance	2,895		2,895		5,637
Average Recorded Investment with no related allowance recorded	580	$ 3,814	577	$ 3,742
Interest Income Recognized with no related allowance recorded	0	37	0	84
Average Recorded Investment with an allowance recorded	3,234	4,541	3,777	4,864
Interest Income Recognized with an allowance recorded	15	34	36	75
Average Recorded Investment	3,814	8,355	4,354	8,606
Interest Income Recognized	15	71	36	159
Agricultural [Member]
Recorded Investment with no related allowance recorded	314		314		314
Unpaid Principal Balance with no related allowance recorded	428		428		428
Recorded Investment with an allowance recorded	6		6		2,302
Unpaid Principal Balance with an allowance recorded	7		7		2,302
Related Allowance	1		1		251
Recorded Investment	320		320		2,616
Unpaid Principal Balance	435		435		2,730
Average Recorded Investment with no related allowance recorded	314	778	314	993
Interest Income Recognized with no related allowance recorded	0	24	0	52
Average Recorded Investment with an allowance recorded	1,117	1,451	1,512	2,177
Interest Income Recognized with an allowance recorded	0	16	0	35
Average Recorded Investment	1,431	2,229	1,826	3,170
Interest Income Recognized	0	40	0	87
Commercial and Industrial [Member]
Recorded Investment with no related allowance recorded	0		0		0
Unpaid Principal Balance with no related allowance recorded	0		0		0
Recorded Investment with an allowance recorded	159		159		339
Unpaid Principal Balance with an allowance recorded	190		190		363
Related Allowance	52		52		95
Recorded Investment	159		159		339
Unpaid Principal Balance	190		190		363
Average Recorded Investment with no related allowance recorded	46	993	31	731
Interest Income Recognized with no related allowance recorded	0	0	0	0
Average Recorded Investment with an allowance recorded	211	165	254	174
Interest Income Recognized with an allowance recorded	1	0	2	1
Average Recorded Investment	257	1,158	285	905
Interest Income Recognized	1	0	2	1
Consumer Portfolio Segment [Member]
Recorded Investment with no related allowance recorded	0		0		0
Unpaid Principal Balance with no related allowance recorded	0		0		0
Recorded Investment with an allowance recorded	7		7		14
Unpaid Principal Balance with an allowance recorded	8		8		15
Related Allowance	1		1		2
Recorded Investment	7		7		14
Unpaid Principal Balance	8		8		15
Average Recorded Investment with no related allowance recorded	0	0	18	0
Interest Income Recognized with no related allowance recorded	0	0	0	0
Average Recorded Investment with an allowance recorded	20	3	18	0
Interest Income Recognized with an allowance recorded	0	0	0	0
Average Recorded Investment	20	3		0
Interest Income Recognized	0	0
Commercial Real Estate Portfolio Segment [Member]
Recorded Investment with no related allowance recorded	0		0		94
Unpaid Principal Balance with no related allowance recorded	0		0		94
Recorded Investment with an allowance recorded	0		0		179
Unpaid Principal Balance with an allowance recorded	0		0		179
Related Allowance	7		7		9
Recorded Investment	0		0		273
Unpaid Principal Balance	0		0		273
Average Recorded Investment with no related allowance recorded	0	1,749	31	1,698
Interest Income Recognized with no related allowance recorded	0	13	0	32
Average Recorded Investment with an allowance recorded	153	642	162	372
Interest Income Recognized with an allowance recorded	2	3	5	6
Average Recorded Investment	153	2,391	193	2,070
Interest Income Recognized	2	16	5	38
Construction Real Estate [Member]
Recorded Investment with no related allowance recorded	0		0		0
Unpaid Principal Balance with no related allowance recorded	0		0		0
Recorded Investment with an allowance recorded	149		149		0
Unpaid Principal Balance with an allowance recorded	149		149		0
Related Allowance	0		0		0
Recorded Investment	149		149		0
Unpaid Principal Balance	149		149		0
Average Recorded Investment with no related allowance recorded	0	27	0	0
Interest Income Recognized with no related allowance recorded	0	0	0	0
Average Recorded Investment with an allowance recorded	0	0	0	0
Interest Income Recognized with an allowance recorded	0	0	0	0
Average Recorded Investment	0	27		0
Interest Income Recognized	0	0
Residential Portfolio Segment [Member]
Recorded Investment with no related allowance recorded	439		439		164
Unpaid Principal Balance with no related allowance recorded	469		469		172
Recorded Investment with an allowance recorded	1,613		1,613		2,027
Unpaid Principal Balance with an allowance recorded	1,644		1,644		2,084
Related Allowance	154		154		146
Recorded Investment	2,052		2,052		2,191
Unpaid Principal Balance	2,113		2,113		$ 2,256
Average Recorded Investment with no related allowance recorded	220	267	201	320
Interest Income Recognized with no related allowance recorded	0	0	0	0
Average Recorded Investment with an allowance recorded	1,733	2,280	1,831	2,141
Interest Income Recognized with an allowance recorded	12	15	29	33
Average Recorded Investment	1,953	2,547	2,032	2,461
Interest Income Recognized	$ 12	$ 15	$ 29	$ 33

X

- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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