Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
INTEREST AND DIVIDEND INCOME:
Loans receivable	$ 71,918	$ 56,886	$ 206,056	$ 168,086
Cash and cash equivalents	10,009	3,968	37,657	4,931
Mortgage-backed securities ("MBS")	4,562	5,048	14,121	14,494
FHLB stock	3,260	2,695	11,025	6,166
Investment securities	895	815	2,671	2,423
Total interest and dividend income	90,644	69,412	271,530	196,100
INTEREST EXPENSE:
Borrowings	31,449	11,644	96,504	27,961
Deposits	24,445	7,787	52,489	25,443
Total interest expense	55,894	19,431	148,993	53,404
NET INTEREST INCOME	34,750	49,981	122,537	142,696
Provision for credit losses	1,324	937	5,875	(5,690)
NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES	33,426	49,044	116,662	148,386
NON-INTEREST INCOME:
Other non-interest income	1,522	1,726	3,702	4,664
Total non-interest income	5,814	6,115	16,249	17,037
NON-INTEREST EXPENSE:
Salaries and employee benefits	13,200	14,581	39,687	42,332
Information technology and related expense	6,118	4,343	16,977	13,268
Occupancy, net	3,556	3,721	10,598	10,593
Regulatory and outside services	1,436	1,572	4,274	4,212
Advertising and promotional	1,447	1,068	3,613	3,626
Federal insurance premium	1,231	784	3,289	2,200
Deposit and loan transaction costs	615	664	1,916	2,050
Office supplies and related expense	546	494	1,810	1,464
Other non-interest expense	1,187	1,163	3,576	3,299
Total non-interest expense	29,336	28,390	85,740	83,044
INCOME BEFORE INCOME TAX EXPENSE	9,904	26,769	47,171	82,379
INCOME TAX EXPENSE	1,602	5,617	8,440	17,418
NET INCOME	$ 8,302	$ 21,152	$ 38,731	$ 64,961
Basic earnings per share ("EPS")	$ 0.06	$ 0.16	$ 0.29	$ 0.48
Diluted EPS	$ 0.06	$ 0.16	$ 0.29	$ 0.48
Basic weighted average common shares	133,198,755	135,724,658	133,668,764	135,675,959
Diluted weighted average common shares	133,198,755	135,724,658	133,668,764	135,675,959
Deposit service fees [Member]
NON-INTEREST INCOME:
Revenue from contracts with customers	$ 3,404	$ 3,601	$ 9,987	$ 10,331
Insurance commissions [Member]
NON-INTEREST INCOME:
Revenue from contracts with customers	$ 888	$ 788	$ 2,560	$ 2,042