Note 3 - Loans Receivable - Summary of Nonaccrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Nonaccrual, no allowance	$ 53,751	$ 31,482
Nonaccrual, with allowance	0	0
Nonaccrual	53,751	31,482
Residential Portfolio Segment [Member] \| Single Family [Member]
Nonaccrual, no allowance	4,300	5,316
Nonaccrual, with allowance	0	0
Nonaccrual	4,300	5,316
Residential Portfolio Segment [Member] \| Multifamily [Member]
Nonaccrual, no allowance	3,700
Nonaccrual, with allowance	0
Nonaccrual	3,700
Commercial Real Estate Portfolio Segment [Member] \| Non-owner Occupied [Member]
Nonaccrual, no allowance	15,237	314
Nonaccrual, with allowance	0	0
Nonaccrual	15,237	314
Commercial Real Estate Portfolio Segment [Member] \| Owner-occupied [Member]
Nonaccrual, no allowance	4,736
Nonaccrual, with allowance	0
Nonaccrual	4,736
Commercial Real Estate Portfolio Segment [Member] \| Construction and Land Development [Member]
Nonaccrual, no allowance	25,420	25,467
Nonaccrual, with allowance	0	0
Nonaccrual	25,420	25,467
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member]
Nonaccrual, no allowance	358	385
Nonaccrual, with allowance	0	0
Nonaccrual	$ 358	$ 385

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477657/942-210-S45-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478478/942-210-S50-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7)(e)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 5: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-7

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph a
-Subparagraph (3)
-Publisher SEC

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph a
-Subparagraph (2)
-Publisher SEC

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant