Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
INTEREST AND DIVIDEND INCOME:
Loans receivable	$ 55,788	$ 60,694
Mortgage-backed securities ("MBS")	4,625	5,710
FHLB stock	1,231	1,069
Investment securities	808	683
Cash and cash equivalents	14	51
Total interest and dividend income	62,466	68,207
INTEREST EXPENSE:
Deposits	9,267	14,067
Borrowings	7,585	10,327
Total interest expense	16,852	24,394
NET INTEREST INCOME	45,614	43,813
Provision for credit losses	(3,439)	(1,532)
NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES	49,053	45,345
NON-INTEREST INCOME:
Other non-interest income	1,365	1,485
Total non-interest income	5,506	5,070
NON-INTEREST EXPENSE:
Salaries and employee benefits	13,728	14,138
Information technology and related expense	4,432	4,233
Occupancy, net	3,379	3,379
Regulatory and outside services	1,368	1,585
Advertising and promotional	1,064	838
Deposit and loan transaction costs	697	766
Federal insurance premium	639	621
Office supplies and related expense	468	424
Other non-interest expense	919	1,083
Total non-interest expense	26,694	27,067
INCOME BEFORE INCOME TAX EXPENSE	27,865	23,348
INCOME TAX EXPENSE	5,679	4,450
NET INCOME	$ 22,186	$ 18,898
Basic earnings per share ("EPS")	$ 0.16	$ 0.14
Diluted EPS	$ 0.16	$ 0.14
Basic weighted average common shares	135,627,043	135,397,691
Diluted weighted average common shares	135,627,043	135,398,884
Deposit service fees [Member]
NON-INTEREST INCOME:
Revenue from contracts with customers	$ 3,430	$ 2,947
Insurance commissions [Member]
NON-INTEREST INCOME:
Revenue from contracts with customers	$ 711	$ 638