Note 6 - Loans and the Allowance for Loan Losses - Impaired Loans (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2022	Dec. 31, 2021
Recorded investment, with an allowance recorded	$ 1,583	$ 1,952
Unpaid principal balance, with an allowance recorded	1,824	2,170
Related allowance	353	694
Average recorded investment, with an allowance recorded	1,699	2,284
Recorded investment, with no allowance recorded	19,179	11,869
Unpaid principal balance, with no allowance recorded	22,553	13,978
Average recorded investment, with no allowance recorded	14,879	11,038
Recorded investment	20,762	13,821
Unpaid principal balance	24,377	16,148
Average recorded investment	16,578	13,322
Commercial Real Estate Portfolio Segment [Member]
Related allowance	143	438
Recorded investment	6,926	5,514
Unpaid principal balance	8,789	6,047
Average recorded investment	5,355	5,099
Commercial Real Estate Portfolio Segment [Member] \| Construction and Land [Member]
Recorded investment, with an allowance recorded	66	68
Unpaid principal balance, with an allowance recorded	70	70
Related allowance	25	26
Average recorded investment, with an allowance recorded	218	27
Recorded investment, with no allowance recorded	597	1,290
Unpaid principal balance, with no allowance recorded	632	1,356
Average recorded investment, with no allowance recorded	893	1,050
Recorded investment	663	1,358
Unpaid principal balance	702	1,426
Average recorded investment	1,111	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	88	74
Unpaid principal balance, with no allowance recorded	101	82
Average recorded investment, with no allowance recorded	112	150
Recorded investment	88	74
Unpaid principal balance	101	82
Average recorded investment	112	162
Commercial Real Estate Portfolio Segment [Member] \| Real Estate Residential One- to Four-Family [Member]
Recorded investment, with an allowance recorded	293	314
Unpaid principal balance, with an allowance recorded	360	371
Related allowance	89	110
Average recorded investment, with an allowance recorded	301	325
Recorded investment, with no allowance recorded	3,377	3,313
Unpaid principal balance, with no allowance recorded	4,301	4,171
Average recorded investment, with no allowance recorded	3,300	2,835
Recorded investment	3,670	3,627
Unpaid principal balance	4,661	4,542
Average recorded investment	3,601	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	757	784
Unpaid principal balance, with an allowance recorded	789	801
Related allowance	89	83
Average recorded investment, with an allowance recorded	670	623
Recorded investment, with no allowance recorded	8,425	2,175
Unpaid principal balance, with no allowance recorded	8,977	2,691
Average recorded investment, with no allowance recorded	5,473	2,889
Recorded investment	9,182	2,959
Unpaid principal balance	9,766	3,492
Average recorded investment	6,143	3,512
Commercial Portfolio Segment [Member]
Recorded investment, with an allowance recorded	342	695
Unpaid principal balance, with an allowance recorded	480	836
Related allowance	143	438
Average recorded investment, with an allowance recorded	416	1,217
Recorded investment, with no allowance recorded	6,584	4,819
Unpaid principal balance, with no allowance recorded	8,309	5,211
Average recorded investment, with no allowance recorded	4,939	3,882
Consumer Portfolio Segment [Member]
Recorded investment, with an allowance recorded	125	91
Unpaid principal balance, with an allowance recorded	125	92
Related allowance	7	37
Average recorded investment, with an allowance recorded	94	80
Recorded investment, with no allowance recorded	108	198
Unpaid principal balance, with no allowance recorded	233	467
Average recorded investment, with no allowance recorded	162	184
Recorded investment	233	289
Unpaid principal balance	358	559
Average recorded investment	$ 256	$ 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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