Accumulated Other Comprehensive Loss (AOCL) - Reclassification out of AOCI (Details) - Reclassification out of Accumulated Other Comprehensive Income. - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gain (loss) on securities available-for-sale	$ 48	$ (1,489)
Amortization of defined benefit pension items	$ 2	$ 5
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Employee Benefits and Share-Based Compensation	Employee Benefits and Share-Based Compensation
Total reclassified amount before tax	$ 50	$ (1,484)
Provision for income tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax benefit	11	(312)
Net Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total reclassification out of AOCI	$ 40	$ (1,172)