Note 7 - Loans and the Allowance for Loan Losses - Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Recorded investment, with an allowance recorded	$ 6,994	$ 1,952
Unpaid principal balance, with an allowance recorded	7,234	2,170
Related allowance	2,214	694
Average recorded investment, with an allowance recorded	3,553	2,284
Recorded investment, with no allowance recorded	7,713	11,869
Unpaid principal balance, with no allowance recorded	11,477	13,978
Average recorded investment, with no allowance recorded	12,100	11,038
Recorded investment	14,707	13,821
Unpaid principal balance	18,711	16,148
Average recorded investment	15,653	13,322
Commercial Real Estate Portfolio Segment [Member]
Related allowance	2,002	438
Recorded investment	6,324	5,514
Unpaid principal balance	8,552	6,047
Average recorded investment	5,908	5,099
Commercial Real Estate Portfolio Segment [Member] \| Construction and Land [Member]
Recorded investment, with an allowance recorded	21	68
Unpaid principal balance, with an allowance recorded	25	70
Related allowance	21	26
Average recorded investment, with an allowance recorded	131	27
Recorded investment, with no allowance recorded	971	1,290
Unpaid principal balance, with no allowance recorded	1,000	1,356
Average recorded investment, with no allowance recorded	828	1,050
Recorded investment	992	1,358
Unpaid principal balance	1,025	1,426
Average recorded investment	959	1,077
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member]
Recorded investment, with an allowance recorded	0	0
Unpaid principal balance, with an allowance recorded	0	0
Related allowance	0	0
Average recorded investment, with an allowance recorded	0	12
Recorded investment, with no allowance recorded	16	74
Unpaid principal balance, with no allowance recorded	19	82
Average recorded investment, with no allowance recorded	71	150
Recorded investment	16	74
Unpaid principal balance	19	82
Average recorded investment	71	162
Commercial Real Estate Portfolio Segment [Member] \| Real Estate Residential One- to Four-Family [Member]
Recorded investment, with an allowance recorded	663	314
Unpaid principal balance, with an allowance recorded	700	371
Related allowance	99	110
Average recorded investment, with an allowance recorded	402	325
Recorded investment, with no allowance recorded	3,365	3,313
Unpaid principal balance, with no allowance recorded	4,295	4,171
Average recorded investment, with no allowance recorded	3,341	2,835
Recorded investment	4,028	3,627
Unpaid principal balance	4,995	4,542
Average recorded investment	3,743	3,160
Commercial Real Estate Portfolio Segment [Member] \| Multi-family Residential [Member]
Recorded investment, with an allowance recorded	0	0
Unpaid principal balance, with an allowance recorded	0	0
Related allowance	0	0
Average recorded investment, with an allowance recorded	0	0
Recorded investment, with no allowance recorded	0	0
Unpaid principal balance, with no allowance recorded	0	0
Average recorded investment, with no allowance recorded	0	48
Recorded investment	0	0
Unpaid principal balance	0	0
Average recorded investment	0	48
Commercial Real Estate Portfolio Segment [Member] \| Nonfarm Nonresidential [Member]
Recorded investment, with an allowance recorded	729	784
Unpaid principal balance, with an allowance recorded	778	801
Related allowance	59	83
Average recorded investment, with an allowance recorded	707	623
Recorded investment, with no allowance recorded	2,309	2,175
Unpaid principal balance, with no allowance recorded	2,832	2,691
Average recorded investment, with no allowance recorded	4,031	2,889
Recorded investment	3,038	2,959
Unpaid principal balance	3,610	3,492
Average recorded investment	4,738	3,512
Commercial Portfolio Segment [Member]
Recorded investment, with an allowance recorded	5,507	695
Unpaid principal balance, with an allowance recorded	5,656	836
Related allowance	2,002	438
Average recorded investment, with an allowance recorded	2,246	1,217
Recorded investment, with no allowance recorded	817	4,819
Unpaid principal balance, with no allowance recorded	2,896	5,211
Average recorded investment, with no allowance recorded	3,662	3,882
Consumer Portfolio Segment [Member]
Recorded investment, with an allowance recorded	74	91
Unpaid principal balance, with an allowance recorded	75	92
Related allowance	33	37
Average recorded investment, with an allowance recorded	67	80
Recorded investment, with no allowance recorded	235	198
Unpaid principal balance, with no allowance recorded	435	467
Average recorded investment, with no allowance recorded	167	184
Recorded investment	309	289
Unpaid principal balance	510	559
Average recorded investment	$ 234	$ 264

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524

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