Loans and Allowance for Credit Losses (Details) - Schedule of allowance for loan losses and recorded investment in loans by impairment methodology - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Allowance For Loan Losses [Member]
Loans and Allowance for Credit Losses (Details) - Schedule of allowance for loan losses and recorded investment in loans by impairment methodology [Line Items]
Individually evaluated	$ 836	$ 1,165
Collectively evaluated	29,572	34,910
Total	30,408	36,075
Recorded Investment In Loans [Member]
Loans and Allowance for Credit Losses (Details) - Schedule of allowance for loan losses and recorded investment in loans by impairment methodology [Line Items]
Individually evaluated	8,163	17,921
Collectively evaluated	2,481,714	2,371,126
Total	2,489,877	2,389,047
Commercial [Member] | Allowance For Loan Losses [Member]
Loans and Allowance for Credit Losses (Details) - Schedule of allowance for loan losses and recorded investment in loans by impairment methodology [Line Items]
Individually evaluated	623	955
Collectively evaluated	20,107	23,170
Total	20,730	24,125
Commercial [Member] | Recorded Investment In Loans [Member]
Loans and Allowance for Credit Losses (Details) - Schedule of allowance for loan losses and recorded investment in loans by impairment methodology [Line Items]
Individually evaluated	3,435	12,810
Collectively evaluated	1,549,837	1,482,186
Total	1,553,272	1,494,996
Consumer [Member] | Allowance For Loan Losses [Member]
Loans and Allowance for Credit Losses (Details) - Schedule of allowance for loan losses and recorded investment in loans by impairment methodology [Line Items]
Individually evaluated	213	210
Collectively evaluated	9,465	11,740
Total	9,678	11,950
Consumer [Member] | Recorded Investment In Loans [Member]
Loans and Allowance for Credit Losses (Details) - Schedule of allowance for loan losses and recorded investment in loans by impairment methodology [Line Items]
Individually evaluated	4,728	5,111
Collectively evaluated	931,877	888,940
Total	$ 936,605	$ 894,051