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Note 4 - Loans and Allowance for Credit Losses - Class of Loans Risk Category (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Originated current year	$ 75,756		$ 75,756		$ 132,796
Originated year one	126,072		126,072		155,608
Originated year two	141,888		141,888		93,560
Originated year three	77,012		77,012		48,815
Originated year four	42,767		42,767		40,589
Originated prior	102,902		102,902		81,696
Revolving	73,169		73,169		69,350
Loans	639,566		639,566		622,414
Current period gross write-offs			23
Year one gross write-offs			44
Year two gross write-offs			121
Year three gross write-offs			26
Year four gross write-offs			8
Prior year gross write-offs			6
Revolving gross write-offs			61
Gross write-offs	104	$ 61	289	$ 571
Pass [Member]
Originated current year					131,765
Originated year one	124,495		124,495		153,463
Originated year two	138,672		138,672		92,602
Originated year three	75,997		75,997		46,761
Originated year four	42,460		42,460		39,445
Originated prior	97,245		97,245		79,380
Revolving	72,530		72,530		68,417
Loans	626,454		626,454		611,833
Current period gross write-offs			75,055
Special Mention [Member]
Originated current year					1,031
Originated year one	757		757		2,097
Originated year two	1,182		1,182		679
Originated year three	212		212		1,670
Originated year four	20		20		577
Originated prior	2,667		2,667		255
Revolving	380		380		749
Loans	5,608		5,608		7,058
Current period gross write-offs			390
Substandard [Member]
Originated current year					0
Originated year one	713		713		0
Originated year two	0		0		0
Originated year three	562		562		306
Originated year four	287		287		303
Originated prior	888		888		980
Revolving	259		259		184
Loans	3,020		3,020		1,773
Current period gross write-offs			311
Doubtful [Member]
Originated current year					0
Originated year one	107		107		48
Originated year two	2,034		2,034		279
Originated year three	241		241		78
Originated year four	0		0		264
Originated prior	2,102		2,102		1,081
Revolving	0		0		0
Loans	4,484		4,484		1,750
Current period gross write-offs			0
One-to-four Family Loan [Member] | Residential Portfolio Segment [Member]
Originated current year	20,533		20,533		34,344
Originated year one	32,152		32,152		31,599
Originated year two	27,816		27,816		26,038
Originated year three	23,980		23,980		7,066
Originated year four	6,139		6,139		9,790
Originated prior	30,595		30,595		24,764
Revolving	0		0		0
Loans	141,215		141,215		133,601
Current period gross write-offs			0
Year one gross write-offs			0
Year two gross write-offs			0
Year three gross write-offs			0
Year four gross write-offs			0
Prior year gross write-offs			4
Revolving gross write-offs			0
Gross write-offs	(0)	(0)	4	31
One-to-four Family Loan [Member] | Pass [Member] | Residential Portfolio Segment [Member]
Originated current year	20,533		20,533		34,344
Originated year one	32,120		32,120		31,551
Originated year two	27,773		27,773		25,846
Originated year three	23,827		23,827		6,913
Originated year four	6,066		6,066		9,525
Originated prior	28,680		28,680		23,628
Revolving	0		0		0
Loans	138,999		138,999		131,807
One-to-four Family Loan [Member] | Special Mention [Member] | Residential Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	32		32		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	533		533		144
Revolving	0		0		0
Loans	565		565		144
One-to-four Family Loan [Member] | Substandard [Member] | Residential Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two					0
Originated year three	0		0		75
Originated year four	73		73		265
Originated prior	432		432		155
Revolving	0		0		0
Loans	505		505		495
One-to-four Family Loan [Member] | Doubtful [Member] | Residential Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	0		0		48
Originated year two	43		43		192
Originated year three	153		153		78
Originated year four	0		0		0
Originated prior	950		950		837
Revolving	0		0		0
Loans	1,146		1,146		1,155
One-to-four Family Residential Construction [Member] | Construction [Member]
Originated current year	8,027		8,027		9,193
Originated year one	1,984		1,984		4,180
Originated year two	667		667		918
Originated year three	717		717		1,119
Originated year four	705		705		0
Originated prior	0		0		257
Revolving	0		0		0
Loans	12,100		12,100		15,667
Current period gross write-offs			0
Year one gross write-offs			0
Year two gross write-offs			0
Year three gross write-offs			0
Year four gross write-offs			0
Prior year gross write-offs			0
Revolving gross write-offs			0
Gross write-offs	(0)	(0)	(0)	(0)
One-to-four Family Residential Construction [Member] | Pass [Member] | Construction [Member]
Originated current year	8,027		8,027		9,193
Originated year one	1,984		1,984		4,180
Originated year two	667		667		831
Originated year three	629		629		1,119
Originated year four	705		705		0
Originated prior	0		0		257
Revolving	0		0		0
Loans	12,012		12,012		15,580
One-to-four Family Residential Construction [Member] | Special Mention [Member] | Construction [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	0		0		0
Revolving	0		0		0
Loans	0		0		0
One-to-four Family Residential Construction [Member] | Substandard [Member] | Construction [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	0		0		0
Revolving	0		0		0
Loans	0		0		0
One-to-four Family Residential Construction [Member] | Doubtful [Member] | Construction [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		87
Originated year three	88		88		0
Originated year four	0		0		0
Originated prior	0		0		0
Revolving	0		0		0
Loans	88		88		87
Other Consumer Loan [Member] | Consumer Portfolio Segment [Member]
Originated current year	15,832		15,832		23,335
Originated year one	18,284		18,284		13,906
Originated year two	9,491		9,491		7,662
Originated year three	4,475		4,475		2,604
Originated year four	1,124		1,124		846
Originated prior	7,829		7,829		5,446
Revolving	2,447		2,447		2,574
Loans	59,482		59,482		56,373
Current period gross write-offs			23
Year one gross write-offs			44
Year two gross write-offs			121
Year three gross write-offs			26
Year four gross write-offs			8
Prior year gross write-offs			2
Revolving gross write-offs			61
Gross write-offs			285	341
Other Consumer Loan [Member] | Pass [Member] | Consumer Portfolio Segment [Member]
Originated current year	15,832		15,832		23,335
Originated year one	18,284		18,284		13,906
Originated year two	9,491		9,491		7,662
Originated year three	4,475		4,475		2,604
Originated year four	1,124		1,124		846
Originated prior	7,829		7,829		5,446
Revolving	2,334		2,334		2,484
Loans	59,369		59,369		56,283
Other Consumer Loan [Member] | Special Mention [Member] | Consumer Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two					0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	0		0		0
Revolving	0		0		0
Loans	0		0		0
Other Consumer Loan [Member] | Substandard [Member] | Consumer Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	0		0		0
Revolving	113		113		90
Loans	113		113		90
Other Consumer Loan [Member] | Doubtful [Member] | Consumer Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	0		0		0
Revolving	0		0		0
Loans	0		0		0
Commercial Real Estate Loan [Member] | Commercial Portfolio Segment [Member]
Originated current year	14,515		14,515		15,641
Originated year one	21,706		21,706		40,675
Originated year two	39,062		39,062		30,229
Originated year three	27,587		27,587		21,442
Originated year four	20,406		20,406		18,648
Originated prior	50,846		50,846		39,705
Revolving	2,298		2,298		2,305
Loans	176,420		176,420		168,645
Current period gross write-offs			0
Year one gross write-offs			0
Year two gross write-offs			0
Year three gross write-offs			0
Year four gross write-offs			0
Prior year gross write-offs			0
Revolving gross write-offs			0
Gross write-offs	(0)	(0)	(0)	(0)
Commercial Real Estate Loan [Member] | Pass [Member] | Commercial Portfolio Segment [Member]
Originated current year	14,204		14,204		14,818
Originated year one	20,479		20,479		40,675
Originated year two	37,970		37,970		29,656
Originated year three	27,025		27,025		19,589
Originated year four	20,192		20,192		18,231
Originated prior	47,890		47,890		38,818
Revolving	2,298		2,298		1,755
Loans	170,058		170,058		163,542
Commercial Real Estate Loan [Member] | Special Mention [Member] | Commercial Portfolio Segment [Member]
Originated current year	0		0		823
Originated year one	514		514		0
Originated year two	1,092		1,092		573
Originated year three	0		0		1,622
Originated year four	0		0		417
Originated prior	2,134		2,134		62
Revolving	0		0		550
Loans	3,740		3,740		4,047
Commercial Real Estate Loan [Member] | Substandard [Member] | Commercial Portfolio Segment [Member]
Originated current year	311		311		0
Originated year one	713		713		0
Originated year two	0		0		0
Originated year three	562		562		231
Originated year four	214		214		0
Originated prior	409		409		825
Revolving	0		0		0
Loans	2,209		2,209		1,056
Commercial Real Estate Loan [Member] | Doubtful [Member] | Commercial Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	413		413		0
Revolving	0		0		0
Loans	413		413		0
Home Equity and Second Mortgage [Member] | Residential Portfolio Segment [Member]
Originated current year	1,880		1,880		5,267
Originated year one	4,632		4,632		4,380
Originated year two	3,638		3,638		529
Originated year three	374		374		232
Originated year four	191		191		427
Originated prior	854		854		517
Revolving	55,326		55,326		51,949
Loans	66,895		66,895		63,301
Current period gross write-offs			0
Year one gross write-offs			0
Year two gross write-offs			0
Year three gross write-offs			0
Year four gross write-offs			0
Prior year gross write-offs			0
Revolving gross write-offs			0
Gross write-offs	(0)	2	(0)	11
Home Equity and Second Mortgage [Member] | Pass [Member] | Residential Portfolio Segment [Member]
Originated current year	1,880		1,880		5,267
Originated year one	4,632		4,632		4,380
Originated year two	3,638		3,638		529
Originated year three	374		374		232
Originated year four	191		191		163
Originated prior	283		283		327
Revolving	55,011		55,011		51,794
Loans	66,009		66,009		62,692
Home Equity and Second Mortgage [Member] | Special Mention [Member] | Residential Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	0		0		0
Revolving	169		169		61
Loans	169		169		61
Home Equity and Second Mortgage [Member] | Substandard [Member] | Residential Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	0		0		0
Revolving	146		146		94
Loans	146		146		94
Home Equity and Second Mortgage [Member] | Doubtful [Member] | Residential Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		264
Originated prior	571		571		190
Revolving	0		0		0
Loans	571		571		454
Commercial Business [Member] | Commercial Portfolio Segment [Member]
Originated current year	6,845		6,845		14,925
Originated year one	11,855		11,855		14,700
Originated year two	12,357		12,357		11,155
Originated year three	9,400		9,400		5,754
Originated year four	5,009		5,009		5,510
Originated prior	4,882		4,882		3,646
Revolving	13,098		13,098		12,522
Loans	63,446		63,446		68,212
Current period gross write-offs			0
Year one gross write-offs			0
Year two gross write-offs			0
Year three gross write-offs			0
Year four gross write-offs			0
Prior year gross write-offs			0
Revolving gross write-offs			0
Gross write-offs	(0)	(0)	(0)	188
Commercial Business [Member] | Pass [Member] | Commercial Portfolio Segment [Member]
Originated current year	6,455		6,455		14,717
Originated year one	11,537		11,537		12,603
Originated year two	10,276		10,276		11,049
Originated year three	9,188		9,188		5,706
Originated year four	4,989		4,989		5,312
Originated prior	4,773		4,773		3,646
Revolving	12,887		12,887		12,384
Loans	60,105		60,105		65,417
Commercial Business [Member] | Special Mention [Member] | Commercial Portfolio Segment [Member]
Originated current year	390		390		208
Originated year one	211		211		2,097
Originated year two	90		90		106
Originated year three	212		212		48
Originated year four	20		20		160
Originated prior	0		0		0
Revolving	211		211		138
Loans	1,134		1,134		2,757
Commercial Business [Member] | Substandard [Member] | Commercial Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		38
Originated prior	0		0		0
Revolving	0		0		0
Loans	0		0		38
Commercial Business [Member] | Doubtful [Member] | Commercial Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	107		107		0
Originated year two	1,991		1,991		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	109		109		0
Revolving	0		0		0
Loans	2,207		2,207		0
Other Construction, Development and Land [Member] | Construction [Member]
Originated current year	7,487		7,487		26,717
Originated year one	31,908		31,908		35,673
Originated year two	36,960		36,960		7,495
Originated year three	1,918		1,918		2,655
Originated year four	1,462		1,462		1,231
Originated prior	3,375		3,375		2,898
Revolving	0		0		0
Loans	83,110		83,110		76,669
Current period gross write-offs			0
Year one gross write-offs			0
Year two gross write-offs			0
Year three gross write-offs			0
Year four gross write-offs			0
Prior year gross write-offs			0
Revolving gross write-offs			0
Gross write-offs	(0)	(0)	(0)	(0)
Other Construction, Development and Land [Member] | Pass [Member] | Construction [Member]
Originated current year	7,487		7,487		26,717
Originated year one	31,908		31,908		35,673
Originated year two	36,960		36,960		7,495
Originated year three	1,918		1,918		2,655
Originated year four	1,462		1,462		1,231
Originated prior	3,269		3,269		2,795
Revolving	0		0		0
Loans	83,004		83,004		76,566
Other Construction, Development and Land [Member] | Special Mention [Member] | Construction [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	0		0		49
Revolving	0		0		0
Loans	0		0		49
Other Construction, Development and Land [Member] | Substandard [Member] | Construction [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	47		47		0
Revolving	0		0		0
Loans	47		47		0
Other Construction, Development and Land [Member] | Doubtful [Member] | Construction [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	59		59		54
Revolving	0		0		0
Loans	59		59		54
Multifamily [Member] | Residential Portfolio Segment [Member]
Originated current year	637		637		3,374
Originated year one	3,551		3,551		10,495
Originated year two	11,897		11,897		9,534
Originated year three	8,561		8,561		7,943
Originated year four	7,731		7,731		4,137
Originated prior	4,521		4,521		4,463
Revolving	0		0		0
Loans	36,898		36,898		39,946
Current period gross write-offs			0
Year one gross write-offs			0
Year two gross write-offs			0
Year three gross write-offs			0
Year four gross write-offs			0
Prior year gross write-offs			0
Revolving gross write-offs			0
Gross write-offs	(0)	$ (0)	(0)	$ (0)
Multifamily [Member] | Pass [Member] | Residential Portfolio Segment [Member]
Originated current year	637		637		3,374
Originated year one	3,551		3,551		10,495
Originated year two	11,897		11,897		9,534
Originated year three	8,561		8,561		7,943
Originated year four	7,731		7,731		4,137
Originated prior	4,521		4,521		4,463
Revolving	0		0		0
Loans	36,898		36,898		39,946
Multifamily [Member] | Special Mention [Member] | Residential Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	0		0		0
Revolving	0		0		0
Loans	0		0		0
Multifamily [Member] | Substandard [Member] | Residential Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	0		0		0
Revolving	0		0		0
Loans	0		0		0
Multifamily [Member] | Doubtful [Member] | Residential Portfolio Segment [Member]
Originated current year	0		0		0
Originated year one	0		0		0
Originated year two	0		0		0
Originated year three	0		0		0
Originated year four	0		0		0
Originated prior	0		0		0
Revolving	0		0		0
Loans	$ 0		$ 0		$ 0

X

- Definition

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

+ References

Reference 1: 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 2: 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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