v3.26.1
Loans Receivable And Allowance for Credit Losses (Modifications, Performance) (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Mar. 31, 2025
Financial Asset, Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months $ 1,748 $ 1,083
Financial Asset, 30 to 89 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 1,245 567
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 503 516
One- to Four-Family Segment [Member] | Originated [Member] | Financial Asset, Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 834 995
One- to Four-Family Segment [Member] | Originated [Member] | Financial Asset, 30 to 89 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 479 567
One- to Four-Family Segment [Member] | Originated [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 355 428
One- to Four-Family Segment [Member] | Correspondent Purchased [Member] | Financial Asset, Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 0 0
One- to Four-Family Segment [Member] | Correspondent Purchased [Member] | Financial Asset, 30 to 89 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 0 0
One- to Four-Family Segment [Member] | Correspondent Purchased [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 0 0
One- to Four-Family Segment [Member] | Bulk Purchased [Member] | Financial Asset, Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 0 0
One- to Four-Family Segment [Member] | Bulk Purchased [Member] | Financial Asset, 30 to 89 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 0 0
One- to Four-Family Segment [Member] | Bulk Purchased [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 0 0
Commercial Segment [Member] | Commercial Real Estate [Member] | Financial Asset, Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 914 0
Commercial Segment [Member] | Commercial Real Estate [Member] | Financial Asset, 30 to 89 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 766 0
Commercial Segment [Member] | Commercial Real Estate [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 148 0
Commercial Segment [Member] | Commercial and Industrial [Member] | Financial Asset, Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 0 0
Commercial Segment [Member] | Commercial and Industrial [Member] | Financial Asset, 30 to 89 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 0 0
Commercial Segment [Member] | Commercial and Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 0 0
Consumer Segment [Member] | Home Equity [Member] | Financial Asset, Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 0 88
Consumer Segment [Member] | Home Equity [Member] | Financial Asset, 30 to 89 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 0 0
Consumer Segment [Member] | Home Equity [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 0 88
Consumer Segment [Member] | Other [Member] | Financial Asset, Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 0 0
Consumer Segment [Member] | Other [Member] | Financial Asset, 30 to 89 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months 0 0
Consumer Segment [Member] | Other [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]    
Financing Receivable, Modified [Line Items]    
Financing Receivable, Modified, after 12 Months $ 0 $ 0