Note 8 - Deposits (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Deposits, Wholesale	$ 120,200	$ 225,700
Brokered Time Deposits	50,500	145,500
Time Deposits	1,607,887
Collateralized Deposits From the State of California [Member]
Time Deposits	40,000	40,000
Time Deposits Acquired Through Internet Listing Services [Member]
Time Deposits	29,700	40,200
Certificates of Deposit Held Through CDARS [Member]
Time Deposits	141,400	128,300
ICS [Member]
Time Deposits	$ 137,400	$ 156,300

Amount of time deposit liabilities, including certificates of deposit.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-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 2: http://www.xbrl.org/2009/role/commonPracticeRef
-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 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 405
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478353/942-405-50-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Name:	us-gaap_TimeDeposits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant