Income Taxes - Net Deferred Income Tax Assets (Liabilities) (Detail) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022
Deferred Tax Assets Net [Abstract]
Net operating loss carryforward	$ 8,003	$ 7,275
Depreciation expense	(128)	(122)
Allowances for receivables	295	255
Accrued liabilities	218	237
Intangible assets	(251)	(35)
Pension liabilities	0	32
PRF received	0	126
Right of use assets	(233)	(292)
Operating lease liabilities	234	291
Other	79	83
Gross deferred tax assets	8,217	7,850
Less valuation allowance	(8,286)	(7,919)
Net deferred income tax liabilities	$ (69)	$ (69)