Operating leases, Quantitative Data (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Jun. 30, 2022
Operating Lease Amounts [Abstract]
Right-of-use assets	$ 1,899		$ 1,980
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Prepaid Expense and Other Assets		Prepaid Expense and Other Assets
Lease liabilities	$ 1,961		$ 2,040
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities and Other Liabilities		Accrued Liabilities and Other Liabilities
Other Information [Abstract]
Operating outgoing cash flows from operating leases	$ 89	$ 87
Lease Costs [Abstract]
Operating lease cost	81	80
Variable lease cost	$ 10	$ 10