Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Apr. 30, 2024	Jul. 31, 2023
Preferred stock, shares authorized	1,000,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	154,810,655	154,810,655
Common stock, shares outstanding	154,810,655	154,810,655
Series B Preferred Stock [Member]
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	100	100
Preferred stock, shares issued	100	100
Preferred stock, shares outstanding	100	100
Preferred stock, liquidation preference	$ 100	$ 100