Income Taxes - Differences Between Income Taxes on Continuing Operations at Federal Statutory Rate and Effective Tax Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income tax benefit at Federal statutory rate	$ (436)	$ (407)
Changes in valuation allowance—continuing operations	378	(2,889)
U.S. state income taxes, net of federal benefit	(45)	1
Deferred tax rate changes	32	2,971
Other	(11)	(21)
Total income tax expense (benefit)	$ (82)	$ (345)