Loans - PPP (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2021 USD ($) customer	Jun. 30, 2021 USD ($) customer	Jun. 30, 2020 USD ($)
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	$ 458,512	$ 465,629
PPP Loans
Loans and Leases Receivable Disclosure [Line Items]
Amount of loan provided	$ 843	$ 1,500
Number of customers | customer	24	44
Small Business Administration, CARES Act, Monetary Relief [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amount of loan provided			$ 49,800
Small Business Administration, CARES Act, Monetary Relief [Member] | Payment Deferral
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	$ 1,800
Mortgage Loan Serviced To Others
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	$ 16,400	$ 18,600
Servicing rights basis points received	25.00%