Operating leases, Quantitative Data (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2024
Operating Lease Amounts [Abstract]
Right-of-use assets	$ 2,080		$ 2,071
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Prepaid Expense and Other Assets		Prepaid Expense and Other Assets
Lease liabilities	$ 2,165		$ 2,159
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	$ 125	$ 113
Right-of-use assets obtained in exchange for new operating lease liabilities	117	19
Lease Costs [Abstract]
Operating lease cost	113	102
Variable lease cost	$ 11	$ 11