Liquidity and Going Concern (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Apr. 30, 2023	Apr. 30, 2023	Apr. 30, 2022
Liquidity and Going Concern [Abstract]
Net loss	$ 0.3	$ 0.4
Net loss from continuing operations	0.3	2.0
Operating cash outflows from continuing operations		1.4	$ 0.3
Cash and short-term investment	0.5	0.5
Current liabilities	2.6	$ 2.6
Consulting service fees, description		Currently the Company had four service-in-progress agreements, and expected to collect consulting service fees of $3.3  million for the next 12 months.
Cash	$ 0.5	$ 0.5