Income Taxes - Net Deferred Income Tax Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Deferred Tax Assets Net [Abstract]
Net operating loss carryforward	$ 6,766	$ 6,367
Depreciation expense	46	(97)
Allowances for receivables	125	111
Accrued expenses	603	617
Intangible assets	877	1,185
Pension liabilities	141	132
Other	67	58
Gross deferred tax assets	8,625	8,373
Less valuation allowance	(8,625)	(8,373)
Net deferred income tax assets	$ 0	$ 0