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Equity Investments (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019	Jul. 31, 2019	Jun. 30, 2016
Equity Investments (Textual)
Shares owned fair value	$ (412)	$ 599	$ 14	$ 550
Common Stock Class B [Member] | Zedge Inc [Member]
Equity Investments (Textual)
Shares of common stock			42,282		42,282
Common Stock Class B [Member] | Rafael Holdings Inc [Member]
Equity Investments (Textual)
Shares of common stock			27,419		27,419
Visa Series C Preferred [Member]
Equity Investments (Textual)
Owned shares	1,830	1,830	1,830	1,830		1,830
Shares owned fair value	$ (400)	$ 600	$ 14	$ 600
Convertible shares						13.884

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The Number of related party shares received in connection with restricted stock.

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Number of shares issued for each share of convertible preferred stock that is converted.

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