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LOANS RECEIVABLE, NET (Schedule of Classes of the Loan Portfolio Summarized by Bank's Internal Risk Rating System) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Sep. 30, 2019
Loans and Leases Receivable, Gross	$ 611,259	$ 523,001
Pass [Member]
Loans and Leases Receivable, Gross	596,259	514,008
Special Mention [Member]
Loans and Leases Receivable, Gross	2,801	1,409
Substandard [Member]
Loans and Leases Receivable, Gross	12,199	7,584
Doubtful [Member]
Loans and Leases Receivable, Gross
Other [Member]
Loans and Leases Receivable, Gross	4,157	4,990
Other [Member] | Pass [Member]
Loans and Leases Receivable, Gross	4,157	4,990
Other [Member] | Special Mention [Member]
Loans and Leases Receivable, Gross
Other [Member] | Substandard [Member]
Loans and Leases Receivable, Gross
Other [Member] | Doubtful [Member]
Loans and Leases Receivable, Gross
Commercial business [Member]
Loans and Leases Receivable, Gross	100,993	48,769
Commercial business [Member] | Pass [Member]
Loans and Leases Receivable, Gross	98,967	47,541
Commercial business [Member] | Special Mention [Member]
Loans and Leases Receivable, Gross	178
Commercial business [Member] | Substandard [Member]
Loans and Leases Receivable, Gross	1,848	1,228
Commercial business [Member] | Doubtful [Member]
Loans and Leases Receivable, Gross
Home equity lines of credit [Member]
Loans and Leases Receivable, Gross	19,373	17,832
Home equity lines of credit [Member] | Pass [Member]
Loans and Leases Receivable, Gross	19,373	17,832
Home equity lines of credit [Member] | Special Mention [Member]
Loans and Leases Receivable, Gross
Home equity lines of credit [Member] | Substandard [Member]
Loans and Leases Receivable, Gross
Home equity lines of credit [Member] | Doubtful [Member]
Loans and Leases Receivable, Gross
Construction [Member]
Loans and Leases Receivable, Gross	28,242	28,451
Construction [Member] | Pass [Member]
Loans and Leases Receivable, Gross	23,101	25,551
Construction [Member] | Special Mention [Member]
Loans and Leases Receivable, Gross
Construction [Member] | Substandard [Member]
Loans and Leases Receivable, Gross	5,141	2,900
Construction [Member] | Doubtful [Member]
Loans and Leases Receivable, Gross
Commercial real estate [Member]
Loans and Leases Receivable, Gross	248,134	232,544
Commercial real estate [Member] | Pass [Member]
Loans and Leases Receivable, Gross	242,003	228,156
Commercial real estate [Member] | Special Mention [Member]
Loans and Leases Receivable, Gross	2,623	1,409
Commercial real estate [Member] | Substandard [Member]
Loans and Leases Receivable, Gross	3,508	2,979
Commercial real estate [Member] | Doubtful [Member]
Loans and Leases Receivable, Gross
One-to four-family residential [Member]
Loans and Leases Receivable, Gross	210,360	190,415
One-to four-family residential [Member] | Pass [Member]
Loans and Leases Receivable, Gross	208,658	189,938
One-to four-family residential [Member] | Special Mention [Member]
Loans and Leases Receivable, Gross
One-to four-family residential [Member] | Substandard [Member]
Loans and Leases Receivable, Gross	1,702	477
One-to four-family residential [Member] | Doubtful [Member]
Loans and Leases Receivable, Gross

X

- 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 http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522

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