Capital Structure - March Offerings (Details) - USD ($) $ / shares in Units, $ in Thousands				1 Months Ended			12 Months Ended
	Mar. 19, 2020	Mar. 12, 2020	Mar. 10, 2020	Apr. 30, 2020	Mar. 31, 2020	Oct. 31, 2018	Jun. 30, 2021	Jun. 30, 2020
Capital Structure
Exercise price of warrants (in dollars per share)			$ 14.375			$ 15.0
Proceeds from Issuance of Common Stock							$ 45,051	$ 65,730
Warrants outstanding term	5 years	5 years	5 years
Warrants exercised				598,200	598,200	419,160
Number of warrants expired		300,000
Effective price paid per share in agreement (in dollars per share)			$ 0.001
Warrant exercises				$ 9,000	$ 9,000		$ 0	$ 26,992
March 19, 2020 Placement Agent Warrants
Capital Structure
Exercise price of warrants (in dollars per share)	$ 19.938
Warrants outstanding term	1 year
Warrants issued shares	81,505
Warrants exercised	120,000
Number of warrants expired	1,133,920
Warrant exercises	$ 1,700
March 12, 2020 Placement Agent Warrants
Capital Structure
Exercise price of warrants (in dollars per share)		$ 15.625
Warrants outstanding term		1 year
Warrants issued shares		104,000
Warrants exercised		1,300,000
Warrant exercises		$ 16,300
Pre Funded Warrants
Capital Structure
Shares authorized for issuance in agreement			445,000
Share price			$ 11.50
Number of warrants issued to purchase shares (in shares)			337,607
Exercise price of warrants (in dollars per share)			$ 11.50
Proceeds from Issuance of Common Stock			$ 9,000
Warrants issued shares			50,870
Effective price paid per share in agreement (in dollars per share)			$ 11.499
October 18, 15 Dollars Warrants
Capital Structure
Exercise price of warrants (in dollars per share)			$ 15.0
Warrants exercised			598,200
Number of warrants expired			419,160
Warrant exercises			$ 9,000
March 19, 2020 Offerings
Capital Structure
Shares authorized for issuance in agreement	1,253,920
Share price	$ 15.95
Number of warrants issued to purchase shares (in shares)	1,253,920
Exercise price of warrants (in dollars per share)	$ 14.70
Proceeds from Issuance of Common Stock	$ 20,000
March 12, 2020 Offerings
Capital Structure
Shares authorized for issuance in agreement		1,600,000
Share price		$ 12.50
Number of warrants issued to purchase shares (in shares)		1,600,000
Exercise price of warrants (in dollars per share)		$ 12.50
Proceeds from Issuance of Common Stock		$ 20,000