Other Income, Net - Schedule of Other Income, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Other Income Disclosure Nonoperating [Abstract]
Interest income	$ 933	$ 568	$ 1,891	$ 1,050
Interest expense	(21)	(156)	(175)	(308)
Revaluation of warrant liabilities and forfeiture of warrants	(552)	294	(717)	294
Other		(20)		(33)
Total	$ 360	$ 686	$ 999	$ 1,003