Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Nov. 10, 2020
Class of Stock [Line Items]
Fair value of warrants	$ 19,768		$ 22,355
Common stock Value Issued		$ 3,136
Unsold Securities Shares and Warrants Under Agreement	107,500
Aggregate Value of Securities Available Under Agreement	$ 175,700
Warrant [Member]
Class of Stock [Line Items]
Exercise price	$ 2.54
Warrants outstanding	16,058,985
ATM Sales Agreement
Class of Stock [Line Items]
Common stock share issued		958,083,000
Common stock Value Issued		$ 3,100
Aggregate Value of Securities Available Under Agreement		$ 100
Two Thousand And Twenty At The Market Sale Agreement
Class of Stock [Line Items]
Aggregate value of securities available under shelf registration statement	$ 60,000
Maximum
Class of Stock [Line Items]
Sale of shares and warrants under agreement	200,000
Maximum | Two Thousand And Twenty At The Market Sale Agreement
Class of Stock [Line Items]
Sale of shares under agreement	$ 60,000			$ 60,000