Loans - Troubled Debt Restructuring (Details) $ in Thousands	12 Months Ended
Jun. 30, 2021 USD ($) loan	Jun. 30, 2020 USD ($) loan
Financing Receivable, Impaired [Line Items]
Troubled debt restructuring	$ 935	$ 1,400
Interest income on accruing TDR	66	79
Impairment on TDR	$ 68	$ 40
Number of contracts \| loan	0	0
Small Business Administration, CARES Act, Monetary Relief [Member] \| Payment Deferral
Financing Receivable, Impaired [Line Items]
Period of principal and interest deferment	3 months
Acquired credit impaired
Financing Receivable, Impaired [Line Items]
Loans acquired	$ 161	$ 321

Fair value at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

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