Nonaccrual Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Mar. 31, 2024
Financing Receivable, Past Due [Line Items]
FinancingReceivableNonaccrualWithAllowance	$ 282	$ 144
Nonperforming
Financing Receivable, Past Due [Line Items]
Financing Receivable, Nonaccrual, No Allowance	16,843	11,631
Financing Receivable, Nonaccrual	17,125	11,775
One-to-four family \| Nonperforming
Financing Receivable, Past Due [Line Items]
Financing Receivable, Nonaccrual, No Allowance	2,244	3,554
FinancingReceivableNonaccrualWithAllowance	0	0
Financing Receivable, Nonaccrual	2,244	3,554
Multifamily \| Nonperforming
Financing Receivable, Past Due [Line Items]
Financing Receivable, Nonaccrual, No Allowance	1,708	2,238
FinancingReceivableNonaccrualWithAllowance	0	0
Financing Receivable, Nonaccrual	1,708	2,238
Commercial real estate \| Nonperforming
Financing Receivable, Past Due [Line Items]
Financing Receivable, Nonaccrual, No Allowance	4,522	4,522
FinancingReceivableNonaccrualWithAllowance	0	0
Financing Receivable, Nonaccrual	4,522	4,522
Business \| Nonperforming
Financing Receivable, Past Due [Line Items]
Financing Receivable, Nonaccrual, No Allowance	8,367	1,317
FinancingReceivableNonaccrualWithAllowance	145	100
Financing Receivable, Nonaccrual	8,512	1,417
Consumer \| Nonperforming
Financing Receivable, Past Due [Line Items]
Financing Receivable, Nonaccrual, No Allowance	2	0
FinancingReceivableNonaccrualWithAllowance	137	44
Financing Receivable, Nonaccrual	$ 139	$ 44

Financing Receivable, Excluding Accrued Interest, Nonaccrual WithAllowance

No definition available.

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- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

+ References

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- Definition

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

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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