Equity Investments (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2020	Jan. 31, 2019	Jul. 31, 2019	Jun. 30, 2016
Common Class B | Zedge Inc [Member]
Equity Investments (Textual)
Shares of common stock			42,282		42,282
Common Class B | 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	$ (71)	$ 400	$ (49)
Convertible shares						13.886