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Note 4 - Loans and Allowance for Credit Losses - Loans - Risk Category of Loans (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current fiscal year		$ 457,362	$ 381,541
Fiscal year before current		216,657	1,060,902
Two fiscal year before current		957,252	477,117
Three fiscal year before current		453,615	328,626
Four fiscal year before current		331,196	195,307
Five fiscal year before current		535,154	483,465
Revolving		101,994	104,903
Revolving converted to term loans		0	0
Loans, gross		3,053,230	3,031,861
YTD gross charge-offs		86	0
YTD gross write-offs, year two		164	2,157
YTD gross write-offs, year three		1,155	273
YTD gross write-offs, year four		191	562
YTD gross write-offs, yera five		2,070	0
YTD gross write-offs, prior		417	202
YTD gross write-offs, revolving		0	0
YTD gross write-offs, revolving to term		0	0
YTD gross write-offs, total		4,083	3,194	$ 256
Pass [Member]
Current fiscal year		457,297	381,240
Fiscal year before current		207,875	1,060,016
Two fiscal year before current		954,068	463,705
Three fiscal year before current		403,505	310,814
Four fiscal year before current		270,307	184,656
Five fiscal year before current		505,688	436,412
Revolving		100,020	101,077
Revolving converted to term loans		0	0
Loans, gross		2,898,760	2,937,920
Special Mention [Member]
Current fiscal year		0	0
Fiscal year before current		0	0
Two fiscal year before current		936	12,626
Three fiscal year before current		10,251	0
Four fiscal year before current		47,082	7,719
Five fiscal year before current		7,060	9,760
Revolving		0	2,737
Revolving converted to term loans		0	0
Loans, gross		65,329	32,842
Substandard [Member]
Current fiscal year		65	301
Fiscal year before current		8,782	886
Two fiscal year before current		2,248	786
Three fiscal year before current		39,859	17,812
Four fiscal year before current		13,807	2,932
Five fiscal year before current		22,406	37,293
Revolving		1,974	1,089
Revolving converted to term loans		0	0
Loans, gross		89,141	61,099
Doubtful [Member]
Current fiscal year		0	0
Fiscal year before current		0	0
Two fiscal year before current		0	0
Three fiscal year before current		0	0
Four fiscal year before current		0	0
Five fiscal year before current		0	0
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		0	0
Construction And Land Development Loans [Member]
Current fiscal year		62,541	127,602
Fiscal year before current		17,727	25,880
Two fiscal year before current		0	23,844
Three fiscal year before current		38,101	3,919
Four fiscal year before current		54,856	192
Five fiscal year before current		65	32
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		173,290	181,469
YTD gross charge-offs		0
YTD gross write-offs, year two		0	0
YTD gross write-offs, year three		1,148	0
YTD gross write-offs, year four		0	0
YTD gross write-offs, yera five		0	0
YTD gross write-offs, prior		0	140
YTD gross write-offs, revolving		0	0
YTD gross write-offs, revolving to term		0	0
YTD gross write-offs, total		1,148	140	(0)
Construction And Land Development Loans [Member] | Pass [Member]
Current fiscal year		62,541	127,602
Fiscal year before current		8,945	25,880
Two fiscal year before current		0	12,168
Three fiscal year before current		0	3,919
Four fiscal year before current		1,370	192
Five fiscal year before current		65	32
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		72,921	169,793
Construction And Land Development Loans [Member] | Special Mention [Member]
Current fiscal year		0	0
Fiscal year before current		0	0
Two fiscal year before current		0	11,676
Three fiscal year before current		0	0
Four fiscal year before current		44,042	0
Five fiscal year before current		0	0
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		44,042	11,676
Construction And Land Development Loans [Member] | Substandard [Member]
Current fiscal year		0	0
Fiscal year before current		8,782	0
Two fiscal year before current		0	0
Three fiscal year before current		38,101	0
Four fiscal year before current		9,444	0
Five fiscal year before current		0	0
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		56,327	0
Construction And Land Development Loans [Member] | Doubtful [Member]
Current fiscal year		0	0
Fiscal year before current		0	0
Two fiscal year before current		0	0
Three fiscal year before current		0	0
Four fiscal year before current		0	0
Five fiscal year before current		0	0
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		0	0
Commercial and Industrial [Member]
Current fiscal year		7,304	1,305
Fiscal year before current		1,126	3,370
Two fiscal year before current		2,663	6,281
Three fiscal year before current		3,991	4,311
Four fiscal year before current		3,587	2,056
Five fiscal year before current		10,062	9,652
Revolving		100,852	103,121
Revolving converted to term loans		0	0
Loans, gross		129,585	130,096
YTD gross charge-offs		8	0
YTD gross write-offs, year two		0	0
YTD gross write-offs, year three		3	0
YTD gross write-offs, year four		0	0
YTD gross write-offs, yera five		0	0
YTD gross write-offs, prior		0	0
YTD gross write-offs, revolving		0	0
YTD gross write-offs, revolving to term		0	0
YTD gross write-offs, total		11	(0)	5
Commercial and Industrial [Member] | Pass [Member]
Current fiscal year		7,304	1,305
Fiscal year before current		1,126	3,283
Two fiscal year before current		2,593	6,281
Three fiscal year before current		3,991	2,901
Four fiscal year before current		2,270	2,049
Five fiscal year before current		5,242	4,700
Revolving		98,878	99,339
Revolving converted to term loans		0	0
Loans, gross		121,404	119,858
Commercial and Industrial [Member] | Special Mention [Member]
Current fiscal year		0	0
Fiscal year before current		0	0
Two fiscal year before current		0	0
Three fiscal year before current		0	0
Four fiscal year before current		0	0
Five fiscal year before current		0	0
Revolving		0	2,737
Revolving converted to term loans		0	0
Loans, gross		0	2,737
Commercial and Industrial [Member] | Substandard [Member]
Current fiscal year		0	0
Fiscal year before current		0	87
Two fiscal year before current		70	0
Three fiscal year before current		0	1,410
Four fiscal year before current		1,317	7
Five fiscal year before current		4,820	4,952
Revolving		1,974	1,045
Revolving converted to term loans		0	0
Loans, gross		8,181	7,501
Commercial and Industrial [Member] | Doubtful [Member]
Current fiscal year		0	0
Fiscal year before current		0	0
Two fiscal year before current		0	0
Three fiscal year before current		0	0
Four fiscal year before current		0	0
Five fiscal year before current		0	0
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		0	0
Commercial Real Estate Portfolio Segment [Member]
Current fiscal year		220,623	90,427
Fiscal year before current		58,597	423,564
Two fiscal year before current		390,514	186,904
Three fiscal year before current		168,439	187,060
Four fiscal year before current		161,708	104,810
Five fiscal year before current		201,539	175,092
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross	[1]	1,201,420	1,167,857
YTD gross charge-offs		0	0
YTD gross write-offs, year two		164	2,078
YTD gross write-offs, year three		0	0
YTD gross write-offs, year four		0	459
YTD gross write-offs, yera five		2,064	0
YTD gross write-offs, prior		417	0
YTD gross write-offs, revolving		0	0
YTD gross write-offs, revolving to term		0	0
YTD gross write-offs, total		2,645	2,537	(0)
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Current fiscal year		220,623	90,126
Fiscal year before current		58,597	423,564
Two fiscal year before current		389,578	186,904
Three fiscal year before current		158,188	175,650
Four fiscal year before current		157,480	94,796
Five fiscal year before current		186,619	152,847
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		1,171,085	1,123,887
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]
Current fiscal year		0	0
Fiscal year before current		0	0
Two fiscal year before current		936	0
Three fiscal year before current		10,251	0
Four fiscal year before current		3,040	7,719
Five fiscal year before current		7,060	4,880
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		21,287	12,599
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Current fiscal year		0	301
Fiscal year before current		0	0
Two fiscal year before current		0	0
Three fiscal year before current		0	11,410
Four fiscal year before current		1,188	2,295
Five fiscal year before current		7,860	17,365
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		9,048	31,371
Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]
Current fiscal year		0	0
Fiscal year before current		0	0
Two fiscal year before current		0	0
Three fiscal year before current		0	0
Four fiscal year before current		0	0
Five fiscal year before current		0	0
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		0	0
Single Family Residential Mortgages Loans [Member]
Current fiscal year		159,940	156,372
Fiscal year before current		137,264	594,258
Two fiscal year before current		551,703	240,879
Three fiscal year before current		227,278	130,331
Four fiscal year before current		110,399	83,547
Five fiscal year before current		306,312	280,645
Revolving		1,126	1,764
Revolving converted to term loans		0	0
Loans, gross		1,494,022	1,487,796
YTD gross charge-offs		0	0
YTD gross write-offs, year two		0	0
YTD gross write-offs, year three		0	0
YTD gross write-offs, year four		0	93
YTD gross write-offs, yera five		0	0
YTD gross write-offs, prior		0	0
YTD gross write-offs, revolving		0	0
YTD gross write-offs, revolving to term		0	0
YTD gross write-offs, total		(0)	93	(0)
Single Family Residential Mortgages Loans [Member] | Pass [Member]
Current fiscal year		159,940	156,372
Fiscal year before current		137,264	593,539
Two fiscal year before current		549,525	239,502
Three fiscal year before current		225,877	125,346
Four fiscal year before current		108,541	83,002
Five fiscal year before current		299,553	265,050
Revolving		1,126	1,720
Revolving converted to term loans		0	0
Loans, gross		1,481,826	1,464,531
Single Family Residential Mortgages Loans [Member] | Special Mention [Member]
Current fiscal year		0	0
Fiscal year before current		0	0
Two fiscal year before current		0	619
Three fiscal year before current		0	0
Four fiscal year before current		0	0
Five fiscal year before current		0	3,855
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		0	4,474
Single Family Residential Mortgages Loans [Member] | Substandard [Member]
Current fiscal year		0	0
Fiscal year before current		0	719
Two fiscal year before current		2,178	758
Three fiscal year before current		1,401	4,985
Four fiscal year before current		1,858	545
Five fiscal year before current		6,759	11,740
Revolving		0	44
Revolving converted to term loans		0	0
Loans, gross		12,196	18,791
Single Family Residential Mortgages Loans [Member] | Doubtful [Member]
Current fiscal year		0	0
Fiscal year before current		0	0
Two fiscal year before current		0	0
Three fiscal year before current		0	0
Four fiscal year before current		0	0
Five fiscal year before current		0	0
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		0	0
SBA Loans [Member]
Current fiscal year		6,954	5,642
Fiscal year before current		1,813	11,023
Two fiscal year before current		10,855	10,368
Three fiscal year before current		10,065	2,324
Four fiscal year before current		400	4,673
Five fiscal year before current		17,176	18,044
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		47,263	52,074
YTD gross charge-offs		78	0
YTD gross write-offs, year two		0	0
YTD gross write-offs, year three		0	0
YTD gross write-offs, year four		0	0
YTD gross write-offs, yera five		0	0
YTD gross write-offs, prior		0	62
YTD gross write-offs, revolving		0	0
YTD gross write-offs, revolving to term		0	0
YTD gross write-offs, total		78	62	14
SBA Loans [Member] | Pass [Member]
Current fiscal year		6,889	5,642
Fiscal year before current		1,813	11,023
Two fiscal year before current		10,855	10,037
Three fiscal year before current		9,731	2,324
Four fiscal year before current		400	4,588
Five fiscal year before current		14,209	13,783
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		43,897	47,397
SBA Loans [Member] | Special Mention [Member]
Current fiscal year		0	0
Fiscal year before current		0	0
Two fiscal year before current		0	331
Three fiscal year before current		0	0
Four fiscal year before current		0	0
Five fiscal year before current		0	1,025
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		0	1,356
SBA Loans [Member] | Substandard [Member]
Current fiscal year		65	0
Fiscal year before current		0	0
Two fiscal year before current		0	0
Three fiscal year before current		334	0
Four fiscal year before current		0	85
Five fiscal year before current		2,967	3,236
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		3,366	3,321
SBA Loans [Member] | Doubtful [Member]
Current fiscal year		0	0
Fiscal year before current		0	0
Two fiscal year before current		0	0
Three fiscal year before current		0	0
Four fiscal year before current		0	0
Five fiscal year before current		0	0
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		0	0
Other Loans [Member]
Current fiscal year		0	193
Fiscal year before current		130	2,807
Two fiscal year before current		1,517	8,841
Three fiscal year before current		5,741	681
Four fiscal year before current		246	29
Five fiscal year before current		0	0
Revolving		16	18
Revolving converted to term loans		0	0
Loans, gross		7,650	12,569
YTD gross charge-offs		0	0
YTD gross write-offs, year two		0	79
YTD gross write-offs, year three		4	273
YTD gross write-offs, year four		191	10
YTD gross write-offs, yera five		6	0
YTD gross write-offs, prior		0	0
YTD gross write-offs, revolving		0	0
YTD gross write-offs, revolving to term		0	0
YTD gross write-offs, total		201	362	$ 237
Other Loans [Member] | Pass [Member]
Current fiscal year		0	193
Fiscal year before current		130	2,727
Two fiscal year before current		1,517	8,813
Three fiscal year before current		5,718	674
Four fiscal year before current		246	29
Five fiscal year before current		0	0
Revolving		16	18
Revolving converted to term loans		0	0
Loans, gross		7,627	12,454
Other Loans [Member] | Special Mention [Member]
Current fiscal year		0	0
Fiscal year before current		0	0
Two fiscal year before current		0	0
Three fiscal year before current		0	0
Four fiscal year before current		0	0
Five fiscal year before current		0	0
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		0	0
Other Loans [Member] | Substandard [Member]
Current fiscal year		0	0
Fiscal year before current		0	80
Two fiscal year before current		0	28
Three fiscal year before current		23	7
Four fiscal year before current		0	0
Five fiscal year before current		0	0
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		23	115
Other Loans [Member] | Doubtful [Member]
Current fiscal year		0	0
Fiscal year before current		0	0
Two fiscal year before current		0	0
Three fiscal year before current		0	0
Four fiscal year before current		0	0
Five fiscal year before current		0	0
Revolving		0	0
Revolving converted to term loans		0	0
Loans, gross		$ 0	$ 0
[1] Includes non-farm and non-residential real estate loans, multifamily residential and single-family residential loans for a business purpose

X

- Definition

Amount of writeoff of financing receivable, charged against allowance for credit loss.

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Amortized cost of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease.

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Amortized cost of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease.

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Amortized cost of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease.

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Amortized cost of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease.

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Amortized cost of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease.

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