SEC Schedule II - Schedule of Valuation and Qualifying Accounts Disclosure (Detail) - Deferred Income Tax Asset Valuation Allowance [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning Of Year	$ 8,625	$ 8,373
Charged to Cost and Expenses/(Benefit)		252
Deductions from Reserves	(236)
Balance at End of Year	$ 8,389	$ 8,625