Stockholders' Equity (Details) - USD ($)						3 Months Ended
	Aug. 03, 2020	Aug. 03, 2020	Jul. 30, 2020	May 20, 2020	Apr. 05, 2019	Sep. 30, 2020	Jun. 30, 2020	Jun. 30, 2019
Subsidiary, Sale of Stock [Line Items]
Shares sold in public offering (shares)		24,916,667
Net proceeds		$ 69,700,000
Maximum proceeds				$ 75,000,000	$ 150,000,000
Underwriting discounts and offering expenses	$ 5,000,000.0
Common stock issued (shares)						2,926,112	1,024,286	221,529
Proceeds Received (Net of Broker Commissions and Fees )						$ 11,831,000	$ 3,071,000	$ 1,814,000
Public Offering of Common Stock
Subsidiary, Sale of Stock [Line Items]
Shares sold in public offering (shares)			21,666,667
Shares sold in public offering (usd per share)			$ 3.00
Net proceeds			$ 61,100,000
Over-Allotment Option
Subsidiary, Sale of Stock [Line Items]
Shares sold in public offering (shares)	3,250,000		3,250,000
Shares sold in public offering (usd per share)	$ 3.00	$ 3.00
Net proceeds	$ 9,200,000