LOANS RECEIVABLE, NET (Narrative) (Details) $ in Thousands	12 Months Ended
Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)
Financing Receivable, Past Due [Line Items]
Loans receivable from directors, executives, affiliates	$ 2,300	$ 2,500
Principal Additions - loans receivable-related parties	31	400
Principal Repayments - loans receivable-related parties	191	775
Value of loans serviced on behalf of others	39,300	42,700
Mortgage Servicing Rights	4	12
Escrow balance held for loans serviced on behalf of others	33	61
Average Recorded Investment	12,200	11,700
Interest Income not recognized on non-accrual loans	555	508
Interest-only mortgage loans
Loans pledged as collateral against Federal Home Loan Bank of New York borrowings	192,600	184,100
Troubled Debt Restructurings Loans	2,900
Troubled Debt Restructurings Loans defaulted
Delinquent loans	8,200
Interest income	$ 139	$ 142
Number of Loans	2	1
More than 90 Days [Member]
Financing Receivable, Past Due [Line Items]
Delinquent loans	$ 1,400
Contractual Payments [Member]
Financing Receivable, Past Due [Line Items]
Number of Loans	227
Loans resumed for contractual scheduled payments	$ 121,400
Payment Deferral [Member]
Financing Receivable, Past Due [Line Items]
Number of Loans	56
Loans resumed for contractual scheduled payments	$ 28,100

Delinquent loans.

No definition available.

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- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. Specific to escrow deposits held for loans serviced on behalf of others.

+ References

No definition available.

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- Definition

The principal balance of interest-only mortgage loans receivable on the company's books as of the balance sheet date.

+ References

No definition available.

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- Definition

The value of capitalized mortgage servicing rights.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

TDR loans.

+ References

No definition available.

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- Definition

TDR loans defaulted.

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No definition available.

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- Definition

Amount of contractually required payments receivable at acquisition of acquired loans accounted for as available-for-sale debt securities with evidence of deterioration of credit quality.

+ References

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- Definition

Aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due after one year (or one business cycle).

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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

No definition available.

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- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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The increase (decrease) during the reporting period in receivables to be collected from other entities that could exert significant influence over the reporting entity.

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The increase (decrease) during the reporting period in the amount owed to the reporting entity in the form of loans and obligations (generally evidenced by promissory notes) made to the following types of related parties: a parent company and its subsidiaries; subsidiaries of a common parent; an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management, an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence.

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Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

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- Definition

The gross interest income that would have been recorded in the period on troubled debt restructurings, if the loans had been current in accordance with their original terms and had been outstanding throughout the period or since origination, if held for part of the period.

+ References

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Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered.

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- Definition

Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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- Details

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