Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (2,889)	$ 672	$ (12,070)	$ (1,724)
Other comprehensive (loss) income:
Unrealized gain on available-for-sale debt securities	(152)		(137)
Comprehensive (loss) income	$ (3,041)	$ 672	$ (12,207)	$ (1,724)