Note 4 - Loans Receivable - Activity in the Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Beginning Balance	$ 7,279	$ 8,249	$ 7,571	$ 8,345	$ 8,345
Provision for (recovery of) credit losses	2,261	(98)	2,000	(37)
Loans charged off	(434)	(22)	(480)	(193)
Recoveries	10	13	25	27
Ending balance	9,116	8,142	9,116	8,142	7,571
Commercial Portfolio Segment [Member]
Beginning Balance			1,146
Loans charged off			(169)		(5,867)
Recoveries			13		14
Ending balance	2,872		2,872		1,146
Consumer Portfolio Segment [Member]
Beginning Balance	48		48
Loans charged off			(14)		(44)
Recoveries			2		1
Ending balance	44		44		48
Home Equity and Junior Liens [Member] \| Real Estate Portfolio [Member]
Beginning Balance	50	63	54	75	75
Provision for (recovery of) credit losses	(3)	(2)	(7)	(14)
Loans charged off	0	0	0	0
Recoveries	0	0	0	0
Ending balance	47	61	47	61	54
One to Four Family First Liens [Member] \| Real Estate Portfolio [Member]
Beginning Balance	211	268	217	220	220
Provision for (recovery of) credit losses	(21)	(7)	(29)	38
Loans charged off	0	0	0	0
Recoveries	3	2	5	5
Ending balance	193	263	193	263	217
Multi Family Residential Real Estate, Senior Notes [Member] \| Real Estate Portfolio [Member]
Beginning Balance	4,189	4,370	4,320	4,178	4,178
Provision for (recovery of) credit losses	259	28	126	214
Loans charged off	(156)	0	(156)	0
Recoveries	3	4	5	10
Ending balance	4,295	4,402	4,295	4,402	4,320
Multi Family Residential Real Estate, Junior Notes [Member] \| Real Estate Portfolio [Member]
Beginning Balance	439	449	444	371	371
Provision for (recovery of) credit losses	134	(8)	129	70
Loans charged off	(141)	0	(141)	0
Recoveries	0	0	0	0
Ending balance	432	441	432	441	444
Owner Occupied Nonresidential Real Estate [Member] \| Real Estate Portfolio [Member]
Beginning Balance	173	178	180	144	144
Provision for (recovery of) credit losses	8	(5)	1	29
Loans charged off	0	0	0	0
Recoveries	0	0	0	0
Ending balance	181	173	181	173	180
Non-Owner Occupied Nonresidential Real Estate [Member] \| Real Estate Portfolio [Member]
Beginning Balance	1,135	1,266	1,162	1,022	1,022
Provision for (recovery of) credit losses	(83)	(42)	(110)	202
Loans charged off	0	0	0	0
Recoveries	0	0	0	0
Ending balance	1,052	1,224	1,052	1,224	1,162
Commercial Loans and Leases [Member] \| Real Estate Portfolio [Member]
Provision for (recovery of) credit losses	(63)		(131)
Loans charged off	(133)		(169)
Recoveries	3		13
Ending balance	657		657
Commercial Loans and Leases [Member] \| Commercial Portfolio Segment [Member]
Beginning Balance	850	1,343	944	1,964	1,964
Provision for (recovery of) credit losses		(73)		(541)
Loans charged off		(10)		(168)
Recoveries		7		12
Ending balance		1,267		1,267	944
Commercial Loans and Leases, Equipment Finance, Government [Member] \| Real Estate Portfolio [Member]
Provision for (recovery of) credit losses	2,057		2,047
Loans charged off	0		0
Recoveries	0		0
Ending balance	2,107		2,107
Commercial Loans and Leases, Equipment Finance, Government [Member] \| Commercial Portfolio Segment [Member]
Beginning Balance	50	112	60	148	148
Provision for (recovery of) credit losses		(15)		(51)
Loans charged off		0		0
Recoveries		0		0
Ending balance		97		97	60
Commercial Loans and Leases, Equipment Finance, Corporate Investment Grade [Member] \| Real Estate Portfolio [Member]
Provision for (recovery of) credit losses	(26)		(34)
Loans charged off	0		0
Recoveries	0		0
Ending balance	108		108
Commercial Loans and Leases, Equipment Finance, Corporate Investment Grade [Member] \| Commercial Portfolio Segment [Member]
Beginning Balance	134	166	142	191	191
Provision for (recovery of) credit losses		(6)		(31)
Loans charged off		0		0
Recoveries		0		0
Ending balance		160		160	142
Consumer [Member] \| Real Estate Portfolio [Member]
Beginning Balance		34		32	$ 32
Provision for (recovery of) credit losses	(1)	32	8	47
Loans charged off	(4)	(12)	(14)	(25)
Recoveries	1	0	2	0
Ending balance	$ 44	$ 54	$ 44	$ 54

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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. 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 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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+ References

Reference 1: 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

Reference 2: 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

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476148/220-40-50-22

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