The Business and Nature of Operations (Details) $ / shares in Units, $ in Millions					3 Months Ended
	Oct. 31, 2022 USD ($) D	May 26, 2022 USD ($) D	Mar. 14, 2022 D $ / shares	Mar. 02, 2022 USD ($) D	Sep. 30, 2022
4.50% Convertible Senior Notes due 2026
Legal, Regulatory Matters and Contingencies
Interest rate (as a percent)					4.50%
Convertible notes redemption (as a percent)					100.00%
NYSE Notices of Failure to Satisfy a Continued Listing Rule or Standard
Legal, Regulatory Matters and Contingencies
Threshold period of specified consecutive trading days | D	30	30		30
Threshold of minimum shareholders equity		$ 50.0		$ 50.0
Threshold of minimum global market capitalization				50.0
Threshold of minimum global market capitalization for initiation of delisting proceedings				$ 15.0
Global market capitalization	$ 19.7
Absolute market capitalization	$ 18.9
Cure period				18 months
Threshold minimum closing price of common stock | $ / shares			$ 1.00
Cure period relating to closing price of common stock			6 months
Period of specified consecutive trading days | D			30
Closing price of common stock | $ / shares			$ 1.00