Financing Receivable Modifications Post Modification Recorded Loans.

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- Definition

Financing receivable number of days past due.

+ References

No definition available.

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- Definition

Loans and Allowance for Credit Losses [Line Items]

+ References

No definition available.

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- Definition

Loans and leases receivable commercial loan participations.

+ References

No definition available.

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- Definition

Loans and leases receivable loans commercial loan participations outside primary market area.

+ References

No definition available.

+ Details

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- Definition

Loans and leases receivable purchased loans.

+ References

No definition available.

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- Definition

Minimum period for default.

+ References

No definition available.

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- Definition

Number of loans as on closing date.

+ References

No definition available.

+ Details

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- Definition

Percentage of government guarantee for loans as per scheme.

+ References

No definition available.

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- Definition

Period of loan execution.

+ References

No definition available.

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- Definition

Residential real estate properties foreclosure proceedings.

+ References

No definition available.

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- Definition

Term period on residential mortgage loan.

+ References

No definition available.

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- Definition

This item represents disclosure of all significant concentrations of credit risk or market risk arising from the subject financial instrument (as defined), whether from an individual counterparty or groups of counterparties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-URI https://asc.fasb.org/subtopic&trid=2196772

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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- Definition

Amount, after troubled debt restructuring, of modified financing receivable.

+ References

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- Definition

Amount, before troubled debt restructuring, of financing receivable to be modified.

+ References

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

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- Definition

Amount, after valuation allowance, of financing receivable held for sale and not part of disposal group. Excludes loan covered under loss sharing agreement and loan classified as investment in debt security.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124265262&loc=d3e48678-111004

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- Definition

Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5162-111524

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4437-111522

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Loans and Allowance for Credit Losses - Additional Information (Detail)	3 Months Ended	12 Months Ended
	Sep. 30, 2022 USD ($) Loans SecurityLoan	Jun. 30, 2022 USD ($) Loans SecurityLoan	Sep. 30, 2021 USD ($) Loans
Loans and Allowance for Credit Losses [Line Items]
Maximum term of fixed-rate one- to four-family residential mortgage loans	15 years
Number of default loans \| SecurityLoan	0	0
Investment recorded prior to modification	$ 0	$ 0
Residential real estate properties foreclosure proceedings	739,000
Foreclosed residential real estate properties	0	120,000
Loans and Leases Receivable, Gross	550,905,000	525,736,000	$ 512,984,000
Fair Value, Concentration of Risk, Collateral Policy [Member]
Loans and Allowance for Credit Losses [Line Items]
Commercial and multi-family real estate	$ 310,300,000	290,972,000
Troubled Debt Restructurings [Member]
Loans and Allowance for Credit Losses [Line Items]
Minimum period for default	90 days
Residential Real Estate [Member]
Loans and Allowance for Credit Losses [Line Items]
Foreclosed residential real estate properties	$ 0
Commercial Business Loans [Member]
Loans and Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross	$ 77,103,000	$ 80,418,000	$ 88,962,000
Commercial Business Loans [Member] \| Small Business Administration Paycheck Protection Programme Loans [Member]
Loans and Allowance for Credit Losses [Line Items]
Percentage of government guarantee for loans as per scheme	100.00%
Commercial Portfolio And Commercial Residential Portfolio [Member]
Loans and Allowance for Credit Losses [Line Items]
Number of loans as on closing date \| Loans	0	0	165
Loans and Leases Receivable, Gross			$ 14,300,000
One- to four-family [Member]
Loans and Allowance for Credit Losses [Line Items]
Loans held for sale	$ 0	$ 227,000
Maximum term of fixed-rate one- to four-family residential mortgage loans	15 years
Loans and Leases Receivable, Gross	$ 142,417,000	132,474,000	$ 117,854,000
Purchased Loans and Loan Participations [Member]
Loans and Allowance for Credit Losses [Line Items]
Approximate amount of purchase loans included in loans receivable	1,527,000	1,570,000
Approximate amount of loans included on out-of-area participation	37,134,000	29,972,000
Amount within 100 miles of primary area	20,501,000	$ 13,234,000
Troubled Debt Restructurings [Member] \| Covid Nineteen [Member]
Loans and Allowance for Credit Losses [Line Items]
Investment recorded post modification	$ 46,700,000
Troubled Debt Restructurings [Member] \| Modification one [Member] \| Covid Nineteen [Member]
Loans and Allowance for Credit Losses [Line Items]
Number of Modifications \| Loans	89
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 43,700,000
Troubled Debt Restructurings [Member] \| Modification Two [Member] \| Covid Nineteen [Member]
Loans and Allowance for Credit Losses [Line Items]
Number of Modifications \| Loans	86
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 3,100,000
Non troubled debt restructuring [Member] \| Covid Nineteen [Member] \| Financing receivables, 30 to 59 days past due [Member]
Loans and Allowance for Credit Losses [Line Items]
Financing receivable number of days past due	30 days
Period of loan excecution	60 days