Income Taxes - Components of Provision for (Benefit from) Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Current:
Federal									$ 0	$ 0	$ 0
State									53	20	10
Foreign									0	0	0
Total current									53	20	10
Deferred:
Federal										(142)
State										(34)
Foreign									0	0	0
Total current										(176)
Provision for (benefit from) income taxes	$ 1	$ 1	$ 0	$ 51	$ (59)	$ (70)	$ (6)	$ (21)	$ 53	$ (156)	$ 10