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Note 3 - Loans and Allowance for Credit Losses - Loans by Credit Quality Indicators (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Originated more than five years prior	$ 373,533		$ 295,767
Originated five years prior	173,772		87,156
Originated four years prior	169,738		47,892
Originated three years prior	98,309		188,187
Originated two years prior	85,802		152,982
Originated current year	41,550		90,857
Revolving	61,201		41,032
Revolving loans converted to term	0		113
Gross loans	1,003,905		988,613
Originated more than five years prior, write-offs	3		125
Originated five years prior, write offs	0		4
Originated four years prior, write offs	6		21
Originated three years prior, write offs	20		33
YTD gross charge-offs	45		110
Originated current year, write offs	27		154
Revolving, write offs	11		72
Revolving loans converted to term, write offs	0		0
Loans charged against the allowance for credit losses	112	$ 109	519
Pass [Member]
Originated more than five years prior	362,549		284,932
Originated five years prior	173,768		177,149
Originated four years prior	169,600		89,889
Originated three years prior	98,164		173,539
Originated two years prior	85,786		100,644
Originated current year	41,545		87,868
Revolving	61,097		58,499
Revolving loans converted to term	0		4,087
Gross loans	992,509		976,607
Special Mention [Member]
Originated more than five years prior	6,708		6,742
Originated five years prior	1		1
Originated four years prior	136		0
Originated three years prior	4		138
Originated two years prior	8		4
Originated current year	5		9
Revolving	96		0
Revolving loans converted to term	0		0
Gross loans	6,958		6,894
Classified Excluding Impaired [Member]
Originated more than five years prior	4,276		4,093
Originated five years prior	3		0
Originated four years prior	2		738
Originated three years prior	141		186
Originated two years prior	8		42
Originated current year	0		16
Revolving	8		37
Revolving loans converted to term	0		0
Gross loans	4,438		5,112
Real Estate Construction Portfolio Segment[Member]
Gross loans	42,942		50,798
Loans charged against the allowance for credit losses	0	0	0
Real Estate Construction Portfolio Segment[Member] | Construction Residential [Member] | Pass [Member]
Originated more than five years prior	0		0
Originated five years prior	0		0
Originated four years prior	397		0
Originated three years prior	877		337
Originated two years prior	3,181		2,312
Originated current year	277		3,328
Revolving	9,873		10,185
Revolving loans converted to term	0		0
Gross loans	14,605		16,162
Real Estate Construction Portfolio Segment[Member] | Construction, Other [Member]
Gross loans	28,337		34,636
Real Estate Construction Portfolio Segment[Member] | Construction, Other [Member] | Pass [Member]
Originated more than five years prior	3,988		2,938
Originated five years prior	791		1,138
Originated four years prior	1,717		805
Originated three years prior	10,152		10,795
Originated two years prior	3,228		8,669
Originated current year	3,146		6,194
Revolving	5,315		4,097
Revolving loans converted to term	0		0
Gross loans	28,337		34,636
Consumer Real Estate Portfolio Segment [Member]
Gross loans	311,549		307,855
Loans charged against the allowance for credit losses	3	0	0
Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member]
Originated more than five years prior			363
Originated five years prior			387
Originated four years prior			249
Originated three years prior			470
Originated two years prior			816
Originated current year			402
Revolving			19,919
Revolving loans converted to term			12
Gross loans	22,783		22,618
Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] | Pass [Member]
Originated more than five years prior	598		363
Originated five years prior	372		387
Originated four years prior	569		249
Originated three years prior	720		470
Originated two years prior	482		816
Originated current year	0		402
Revolving	20,042		19,894
Revolving loans converted to term	0		12
Gross loans	22,783		22,593
Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] | Classified Excluding Impaired [Member]
Originated more than five years prior			0
Originated five years prior			0
Originated four years prior			0
Originated three years prior			0
Originated two years prior			0
Originated current year			0
Revolving			25
Revolving loans converted to term			0
Gross loans			25
Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member]
Originated more than five years prior	58,004		43,019
Originated five years prior	33,634		33,630
Originated four years prior	34,962		18,111
Originated three years prior	22,361		35,735
Originated two years prior	22,212		21,593
Originated current year	3,599		18,991
Revolving	406		0
Revolving loans converted to term	0		303
Gross loans	175,178		171,382
Originated more than five years prior, write-offs	3
Originated five years prior, write offs	0
Originated four years prior, write offs	0
Originated three years prior, write offs	0
YTD gross charge-offs	0
Originated current year, write offs	0
Revolving, write offs	0
Revolving loans converted to term, write offs	0
Loans charged against the allowance for credit losses	3
Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] | Pass [Member]
Originated more than five years prior	57,640		42,211
Originated five years prior	33,634		33,630
Originated four years prior	34,962		18,111
Originated three years prior	22,239		35,557
Originated two years prior	22,212		21,593
Originated current year	3,599		18,991
Revolving			0
Revolving loans converted to term	406		303
Gross loans	174,692		170,396
Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] | Special Mention [Member]
Originated more than five years prior	364		367
Originated five years prior	0		0
Originated four years prior	0
Originated three years prior	0
Originated two years prior	0
Originated current year	0
Revolving	0
Revolving loans converted to term	0
Gross loans	364		367
Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] | Classified Excluding Impaired [Member]
Originated more than five years prior	0		441
Originated five years prior	0		0
Originated four years prior	0		0
Originated three years prior	122		178
Originated two years prior	0		0
Originated current year	0		0
Revolving	0		0
Revolving loans converted to term	0		0
Gross loans	122		619
Consumer Real Estate Portfolio Segment [Member] | Closed End Junior Liens [Member]
Gross loans	9,291		8,574
Consumer Real Estate Portfolio Segment [Member] | Closed End Junior Liens [Member] | Pass [Member]
Originated more than five years prior	1,588		1,596
Originated five years prior	269		277
Originated four years prior	2,031		0
Originated three years prior	1,552		2,048
Originated two years prior	2,974		1,597
Originated current year	846		3,004
Revolving	31		31
Revolving loans converted to term	0		21
Gross loans	9,291		8,574
Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member]
Originated more than five years prior	51,137		29,659
Originated five years prior	18,435		22,946
Originated four years prior	15,648		19,280
Originated three years prior	9,303		16,380
Originated two years prior	4,158		8,175
Originated current year	3,359		3,266
Revolving	2,257		1,907
Revolving loans converted to term	0		3,668
Gross loans	104,297		105,281
Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member] | Pass [Member]
Originated more than five years prior	50,550		28,919
Originated five years prior	18,435		22,946
Originated four years prior	15,512		19,280
Originated three years prior	9,303		16,242
Originated two years prior	4,158		8,175
Originated current year	3,359		3,266
Revolving	2,257		1,907
Revolving loans converted to term	0		3,668
Gross loans	103,574		104,403
Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member] | Special Mention [Member]
Originated more than five years prior	0		0
Originated five years prior	0		0
Originated four years prior	136		0
Originated three years prior	0		138
Originated two years prior	0		0
Originated current year	0		0
Revolving	0		0
Revolving loans converted to term	0
Gross loans	136		138
Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member] | Classified Excluding Impaired [Member]
Originated more than five years prior	587		740
Originated five years prior	0		0
Originated four years prior	0		0
Originated three years prior	0		0
Originated two years prior	0		0
Originated current year	0		0
Revolving	0		0
Revolving loans converted to term	0		0
Gross loans	587		740
Commercial Real Estate Portfolio Segment [Member]
Gross loans	497,072		478,078
Loans charged against the allowance for credit losses	0	0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member]
Gross loans	159,161		143,630
Commercial Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] | Pass [Member]
Originated more than five years prior	41,106		39,665
Originated five years prior	39,272		39,879
Originated four years prior	40,252		2,055
Originated three years prior	6,075		40,198
Originated two years prior	13,163		8,470
Originated current year	19,141		13,205
Revolving	152		158
Revolving loans converted to term	0		0
Gross loans	159,161		143,630
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member]
Originated more than five years prior	84,268		61,513
Originated five years prior	7,328		7,432
Originated four years prior	27,677		25,277
Originated three years prior	10,327		28,753
Originated two years prior	5,825		10,351
Originated current year	1,573		3,810
Revolving	2,151		3,434
Revolving loans converted to term	0		83
Gross loans	139,149		140,653
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] | Pass [Member]
Originated more than five years prior	74,921		52,916
Originated five years prior	7,328		7,432
Originated four years prior	27,677		24,539
Originated three years prior	10,327		28,753
Originated two years prior	5,825		10,351
Originated current year	1,573		3,810
Revolving	2,143		3,422
Revolving loans converted to term	0		83
Gross loans	129,794		131,306
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] | Special Mention [Member]
Originated more than five years prior	6,344		6,375
Originated five years prior	0		0
Originated four years prior	0		0
Originated three years prior	0		0
Originated two years prior	0		0
Originated current year	0		0
Revolving	0		0
Revolving loans converted to term	0		0
Gross loans	6,344		6,375
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] | Classified Excluding Impaired [Member]
Originated more than five years prior	3,003		2,222
Originated five years prior	0		0
Originated four years prior	0		738
Originated three years prior	0		0
Originated two years prior	0		0
Originated current year	0		0
Revolving	8		12
Revolving loans converted to term	0		0
Gross loans	3,011		2,972
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Other [Member]
Originated more than five years prior	104,288		91,048
Originated five years prior	36,074		36,777
Originated four years prior	32,213		17,919
Originated three years prior	16,895		23,775
Originated two years prior	6,301		16,990
Originated current year	1,332		5,583
Revolving	1,659		1,703
Revolving loans converted to term	0		0
Gross loans	198,762		193,795
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Other [Member] | Pass [Member]
Originated more than five years prior	103,602		90,358
Originated five years prior	36,074		36,777
Originated four years prior	32,213		17,919
Originated three years prior	16,895		23,775
Originated two years prior	6,301		16,990
Originated current year	1,332		5,583
Revolving	1,659		1,703
Revolving loans converted to term	0		0
Gross loans	198,076		193,105
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Other [Member] | Classified Excluding Impaired [Member]
Originated more than five years prior	686		690
Originated five years prior	0		0
Originated four years prior	0		0
Originated three years prior	0		0
Originated two years prior	0		0
Originated current year	0		0
Revolving	0		0
Revolving loans converted to term	0		0
Gross loans	686		690
Commercial Non Real Estate Segment [Member]
Gross loans	53,156		51,844
Loans charged against the allowance for credit losses	0	0	166
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member]
Originated more than five years prior	8,115		6,437
Originated five years prior	11,410		11,849
Originated four years prior	5,118		2,070
Originated three years prior	5,467		5,534
Originated two years prior	6,913		5,903
Originated current year	2,811		8,407
Revolving	13,322		11,644
Revolving loans converted to term	0		0
Gross loans	53,156		51,844
Originated more than five years prior, write-offs			125
Originated five years prior, write offs			0
Originated four years prior, write offs			0
Originated three years prior, write offs			0
YTD gross charge-offs			0
Originated current year, write offs			22
Revolving, write offs			19
Revolving loans converted to term, write offs			0
Loans charged against the allowance for credit losses			166
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] | Pass [Member]
Originated more than five years prior	8,115		6,437
Originated five years prior	11,410		11,849
Originated four years prior	5,118		2,070
Originated three years prior	5,467		5,528
Originated two years prior	6,913		5,903
Originated current year	2,811		8,407
Revolving			11,644
Revolving loans converted to term			0
Gross loans			51,838
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] | Special Mention [Member]
Originated more than five years prior	0
Originated five years prior	0
Originated four years prior	0
Originated three years prior	0
Originated two years prior	0
Originated current year	0
Revolving	96
Revolving loans converted to term	0
Gross loans	96
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] | Classified Excluding Impaired [Member]
Originated more than five years prior			0
Originated five years prior			0
Originated four years prior			0
Originated three years prior			6
Originated two years prior			0
Originated current year			0
Revolving			0
Revolving loans converted to term			0
Gross loans			6
Consumer Non Real Estate Portfolio Segment [Member]
Gross loans	42,205		42,867
Loans charged against the allowance for credit losses	109	109	353
Consumer Non Real Estate Portfolio Segment [Member] | Credit Card Receivable [Member]
Gross loans	4,407		4,698
Originated more than five years prior, write-offs	0		0
Originated five years prior, write offs	0		0
Originated four years prior, write offs	0		0
Originated three years prior, write offs	0		0
YTD gross charge-offs	0		0
Originated current year, write offs	0		0
Revolving, write offs	11		53
Revolving loans converted to term, write offs	0		0
Loans charged against the allowance for credit losses	11		53
Consumer Non Real Estate Portfolio Segment [Member] | Credit Card Receivable [Member] | Pass [Member]
Originated more than five years prior	0		0
Originated five years prior	0		0
Originated four years prior	0		0
Originated three years prior	0		0
Originated two years prior	0		0
Originated current year	0		0
Revolving	4,407		4,698
Revolving loans converted to term	0		0
Gross loans	4,407		4,698
Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member]
Originated more than five years prior	202		36
Originated five years prior	553		243
Originated four years prior	1,385		727
Originated three years prior	3,746		1,640
Originated two years prior	5,273		4,506
Originated current year	1,669		5,843
Revolving	0		0
Revolving loans converted to term	0		0
Gross loans	12,828		12,995
Originated more than five years prior, write-offs	0		0
Originated five years prior, write offs	0		6
Originated four years prior, write offs	0		0
Originated three years prior, write offs	20		14
YTD gross charge-offs	0		16
Originated current year, write offs	0		11
Revolving, write offs	0		0
Revolving loans converted to term, write offs	0		0
Loans charged against the allowance for credit losses	20		47
Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member] | Pass [Member]
Originated more than five years prior	202		36
Originated five years prior	550		727
Originated four years prior	1,385		243
Originated three years prior	3,736		1,640
Originated two years prior	5,273		4,474
Originated current year	1,669		5,832
Revolving	0		0
Revolving loans converted to term	0		0
Gross loans	12,815		12,952
Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member] | Special Mention [Member]
Originated more than five years prior	0		0
Originated five years prior	0		0
Originated four years prior	0		0
Originated three years prior	4		0
Originated two years prior	0		4
Originated current year	0
Revolving	0		0
Revolving loans converted to term	0		0
Gross loans	4		4
Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member] | Classified Excluding Impaired [Member]
Originated more than five years prior	0		0
Originated five years prior	3		0
Originated four years prior	0		0
Originated three years prior	6		0
Originated two years prior	0		28
Originated current year	0		11
Revolving	0		0
Revolving loans converted to term	0		0
Gross loans	9		39
Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member]
Originated more than five years prior	509		184
Originated five years prior	700		875
Originated four years prior	1,943		401
Originated three years prior	4,343		2,276
Originated two years prior	12,092		4,818
Originated current year	3,797		15,860
Revolving	1,586		760
Revolving loans converted to term	0		0
Gross loans	24,970		25,174
Originated more than five years prior, write-offs	0		0
Originated five years prior, write offs	0		15
Originated four years prior, write offs	6		4
Originated three years prior, write offs	0		19
YTD gross charge-offs	45		94
Originated current year, write offs	27		121
Revolving, write offs	0		0
Revolving loans converted to term, write offs	0		0
Loans charged against the allowance for credit losses	78		253
Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member] | Pass [Member]
Originated more than five years prior	509		184
Originated five years prior	699		874
Originated four years prior	1,941		401
Originated three years prior	4,330		2,274
Originated two years prior	12,076		4,804
Originated current year	3,792		15,846
Revolving	1,586		760
Revolving loans converted to term	0		0
Gross loans	24,933		25,143
Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member] | Special Mention [Member]
Originated more than five years prior	0		0
Originated five years prior	1		0
Originated four years prior	0		1
Originated three years prior	0		0
Originated two years prior	8		0
Originated current year	5		9
Revolving	0		0
Revolving loans converted to term	0		0
Gross loans	14		10
Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member] | Classified Excluding Impaired [Member]
Originated more than five years prior	0		0
Originated five years prior	0		0
Originated four years prior	2		0
Originated three years prior	13		2
Originated two years prior	8		14
Originated current year	0		5
Revolving	0		0
Revolving loans converted to term	0		0
Gross loans	23		21
Public Sector and IDA Portfolio Segment[Member]
Gross loans	56,981		57,171
Loans charged against the allowance for credit losses	0	$ 0	0
Public Sector and IDA Portfolio Segment[Member] | Pass [Member]
Originated more than five years prior	19,730		19,309
Originated five years prior	24,934		25,232
Originated four years prior	5,826		218
Originated three years prior	6,491		5,922
Originated two years prior	0		6,490
Originated current year	0		0
Revolving	0		0
Revolving loans converted to term	0		0
Gross loans	$ 56,981		$ 57,171

X

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11B
-Subparagraph (c)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-11B

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-79

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amortized cost, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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