Loans Receivable, Net and Related Allowance for Credit Losses (Details) - Schedule of Loans Receivable - USD ($) $ in Thousands	Dec. 31, 2023	Sep. 30, 2023
Schedule of Loans Receivable [Line Items]
Total loans receivable	$ 729,494	$ 698,206
Net deferred loan costs	(934)	(806)
Total loans receivable, net	728,560	697,400
One-to four-family residential [Member]
Schedule of Loans Receivable [Line Items]
One-to-four family residential	234,156	237,683
Total loans receivable		237,683
Commercial real estate [Member]
Schedule of Loans Receivable [Line Items]
Commercial real estate	407,346	389,134
Total loans receivable		389,134
Construction [Member]
Schedule of Loans Receivable [Line Items]
Construction and land	34,641	21,853
Total loans receivable		21,853
Home equity lines of credit [Member]
Schedule of Loans Receivable [Line Items]
Home equity loans and lines of credit	24,069	16,983
Total loans receivable		16,983
Commercial business [Member]
Schedule of Loans Receivable [Line Items]
Commercial business	27,043	30,194
Total loans receivable		30,194
Other [Member]
Schedule of Loans Receivable [Line Items]
Other	$ 2,239	2,359
Total loans receivable		$ 2,359