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Note 3 - Loans and Allowance for Credit Losses on Loans - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Sep. 29, 2025	Dec. 30, 2024
Beginning balance	$ 90,722	$ 82,155	$ 86,943	$ 79,374	$ 79,374
Loans, individually evaluated for impairment			30,898
Provision for credit losses	1,550	4,325	4,700	6,575
Loans, individually evaluated for impairment	26,723		26,723		30,898
Charge-offs	(429)	(1,345)	(1,596)	(1,954)	(2,776)
Recoveries	317	208	2,113	1,348
Ending balance	92,160	85,343	92,160	85,343	86,943
Allowance for loans, individually evaluated for impairment	6,026		6,026		3,848
Real Estate [Member]
Loans, individually evaluated for impairment						$ 25,719	$ 26,204
Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			4,262
Loans, individually evaluated for impairment	616		616		4,262
Other Collateral [Member]
Loans, individually evaluated for impairment			432
Loans, individually evaluated for impairment	388		388		432
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	27,274	22,751	24,127	33,800	33,800
Loans, individually evaluated for impairment			15,246
Provision for credit losses	(91)	(74)	3,068	(11,205)
Loans, individually evaluated for impairment	15,314		15,314		15,246
Charge-offs	0	0	(38)	0
Recoveries	17	18	43	100
Ending balance	27,200	22,695	27,200	22,695	24,127
Allowance for loans, individually evaluated for impairment	2,032		2,032		1,839
Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment						15,314	15,246
Commercial Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Commercial Real Estate Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Commercial and Industrial Portfolio Segment [Member]
Beginning balance	28,618	27,454	27,780	20,854	20,854
Loans, individually evaluated for impairment			5,427
Provision for credit losses	644	878	382	6,809
Loans, individually evaluated for impairment	2,623		2,623		5,427
Charge-offs	(68)	(658)	(410)	(748)
Recoveries	175	67	1,617	826
Ending balance	29,369	27,741	29,369	27,741	27,780
Allowance for loans, individually evaluated for impairment	1,807		1,807		655
Commercial and Industrial Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment						1,879	1,089
Commercial and Industrial Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			4,262
Loans, individually evaluated for impairment	616		616		4,262
Commercial and Industrial Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment			76
Loans, individually evaluated for impairment	128		128		76
Residential Real Estate Portfolio Segment [Member]
Beginning balance	18,852	17,573	19,622	13,598	13,598
Loans, individually evaluated for impairment			9,488
Provision for credit losses	574	1,696	(200)	5,672
Loans, individually evaluated for impairment	7,165		7,165		9,488
Charge-offs	(85)	(295)	(138)	(316)
Recoveries	6	11	63	31
Ending balance	19,347	18,885	19,347	18,885	19,622
Allowance for loans, individually evaluated for impairment	2,160		2,160		1,300
Residential Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment						7,165	9,488
Residential Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Residential Real Estate Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Construction and Development [Member]
Beginning balance	11,134	10,029	10,981	7,593	7,593
Loans, individually evaluated for impairment			311
Provision for credit losses	87	1,622	240	4,058
Loans, individually evaluated for impairment	1,361		1,361		311
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
Ending balance	11,221	11,651	11,221	11,651	10,981
Allowance for loans, individually evaluated for impairment	0		0		20
Construction and Development [Member] | Real Estate [Member]
Loans, individually evaluated for impairment						1,361	311
Construction and Development [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Construction and Development [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Consumer Portfolio Segment [Member]
Beginning balance	2,877	2,552	2,531	1,407	1,407
Loans, individually evaluated for impairment			356
Provision for credit losses	178	(6)	874	1,294
Loans, individually evaluated for impairment	260		260		356
Charge-offs	(251)	(193)	(831)	(606)	(785)
Recoveries	106	107	336	365
Ending balance	2,910	2,460	2,910	2,460	2,531
Allowance for loans, individually evaluated for impairment	27		27		34
Consumer Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment						0	0
Consumer Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Consumer Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment			356
Loans, individually evaluated for impairment	260		260		356
Finance Leases Portfolio Segment [Member]
Beginning balance	390	411	370	220	220
Loans, individually evaluated for impairment			0
Provision for credit losses	46	(9)	66	182
Loans, individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
Ending balance	436	402	436	402	370
Allowance for loans, individually evaluated for impairment	0		0		0
Finance Leases Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment						0	0
Finance Leases Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Finance Leases Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Beginning balance	15,278	13,032	13,935	22,133	22,133
Loans, individually evaluated for impairment			11,699
Provision for credit losses	(960)	278	357	(8,856)
Loans, individually evaluated for impairment	10,419		10,419		11,699
Charge-offs	0	0	0	0	0
Recoveries	0	18	26	51
Ending balance	14,318	13,328	14,318	13,328	13,935
Allowance for loans, individually evaluated for impairment	1,195		1,195		1,075
Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment						10,419	11,699
Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Beginning balance	4,587	4,248	5,154	4,282	4,282
Loans, individually evaluated for impairment			2,974
Provision for credit losses	(37)	685	(601)	651
Loans, individually evaluated for impairment	1,889		1,889		2,974
Charge-offs	0	0	(3)	0	0
Recoveries	2	7	2	7
Ending balance	4,552	4,940	4,552	4,940	5,154
Allowance for loans, individually evaluated for impairment	690		690		852
Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment						1,889	2,974
Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Beginning balance	11,996	9,719	10,192	11,667	11,667
Loans, individually evaluated for impairment			3,547
Provision for credit losses	869	(352)	2,711	(2,349)
Loans, individually evaluated for impairment	4,895		4,895		3,547
Charge-offs	0	0	(38)	0	0
Recoveries	17	0	17	49
Ending balance	12,882	9,367	12,882	9,367	10,192
Allowance for loans, individually evaluated for impairment	837		837		764
Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment						4,895	3,547
Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Beginning balance	14,265	13,325	14,468	9,316	9,316
Loans, individually evaluated for impairment			6,514
Provision for credit losses	611	1,011	401	5,021
Loans, individually evaluated for impairment	5,276		5,276		6,514
Charge-offs	(85)	(295)	(135)	(316)	(356)
Recoveries	4	4	61	24
Ending balance	14,795	14,045	14,795	14,045	14,468
Allowance for loans, individually evaluated for impairment	1,470		1,470		448
Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment						5,276	6,514
Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Term [Member] | Commercial and Industrial Portfolio Segment [Member]
Beginning balance	20,677	21,629	21,284	14,359	14,359
Loans, individually evaluated for impairment			4,878
Provision for credit losses	39	201	(1,668)	7,006
Loans, individually evaluated for impairment	1,130		1,130		4,878
Charge-offs	(68)	(658)	(410)	(748)	(748)
Recoveries	175	67	1,617	622
Ending balance	20,823	21,239	20,823	21,239	21,284
Allowance for loans, individually evaluated for impairment	542		542		516
Term [Member] | Commercial and Industrial Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment						674	740
Term [Member] | Commercial and Industrial Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			4,062
Loans, individually evaluated for impairment	328		328		4,062
Term [Member] | Commercial and Industrial Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment			76
Loans, individually evaluated for impairment	128		128		76
Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member]
Beginning balance	7,941	5,825	6,496	6,495	6,495
Loans, individually evaluated for impairment			549
Provision for credit losses	605	677	2,050	(197)
Loans, individually evaluated for impairment	1,493		1,493		549
Charge-offs	0	0	0	0	(555)
Recoveries	0	0	0	204
Ending balance	8,546	6,502	8,546	6,502	6,496
Allowance for loans, individually evaluated for impairment	1,265		1,265		139
Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment						1,205	349
Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			200
Loans, individually evaluated for impairment	288		288		200
Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Home Equity Line of Credit [Member]
Beginning balance	1,343	1,147	1,277	1,660	1,660
Loans, individually evaluated for impairment			70
Provision for credit losses	34	87	110	(428)
Loans, individually evaluated for impairment	0		0		70
Charge-offs	0	(100)	(10)	(100)
Recoveries	0	0	0	2
Ending balance	1,377	1,134	1,377	1,134	1,277
Allowance for loans, individually evaluated for impairment	0		0		0
Home Equity Line of Credit [Member] | Real Estate [Member]
Loans, individually evaluated for impairment						0	70
Home Equity Line of Credit [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Home Equity Line of Credit [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Credit Card Receivable [Member] | Commercial Portfolio Segment [Member]
Beginning balance	234	238	255	242	242
Loans, individually evaluated for impairment			0
Provision for credit losses	78	131	160	193
Loans, individually evaluated for impairment	0		0		0
Charge-offs	(25)	(99)	(169)	(184)	(225)
Recoveries	13	5	54	24
Ending balance	300	$ 275	300	$ 275	255
Allowance for loans, individually evaluated for impairment	0		0		0
Credit Card Receivable [Member] | Commercial Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment						$ 0	$ 0
Credit Card Receivable [Member] | Commercial Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	0		0		0
Credit Card Receivable [Member] | Commercial Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment			0
Loans, individually evaluated for impairment	$ 0		$ 0		$ 0

X

- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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Amount of allowance for credit loss on financing receivable evaluated on individual basis. Excludes financing receivable evaluated on collective basis.

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+ References

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