Note 3 - Loans Receivable - Non-accrual Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Non-accrual loans	$ 6,536	$ 6,175
Total non-accrual loans to total loans receivable	0.39%	0.37%
Total non-accrual loans to total assets	0.29%	0.27%
Residential Portfolio Segment [Member] \| One to Four Family [Member]
Non-accrual loans	$ 6,179	$ 5,861
Residential Portfolio Segment [Member] \| Multifamily [Member]
Non-accrual loans	239	177
Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Non-accrual loans	0	14
Construction and Land Portfolio Segment [Member]
Non-accrual loans	0	0
Commercial Real Estate Portfolio Segment [Member]
Non-accrual loans	118	123
Commercial Portfolio Segment [Member]
Non-accrual loans	0	0
Consumer Portfolio Segment [Member]
Non-accrual loans	$ 0	$ 0

Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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