Premises and Equipment - Calculated amount of right of use assets and lease liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2021
Operating leases ROU asset	$ 3,835		$ 3,835		$ 2,770
Right of use assets obtained in exchange for lease obligations: Operating Leases			109	$ 599
Consolidated Balance Sheet [Member]
Operating leases ROU asset	3,835		3,835		2,770
Operating leases liability	3,835		3,835		$ 2,770
Consolidated Statement Of Income [Member]
Operating lease costs classified as occupancy and equipment expense (includes short-term lease costs)	117	$ 107	315	242
Supplemental Disclosures Of Cash Flow Information [Member]
Right of use assets obtained in exchange for lease obligations: Operating Leases		599		599
Supplemental Disclosures Of Cash Flow Information [Member] | Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 92	$ 80	$ 261	$ 205