Revenue (Details Textual) - USD ($) $ in Thousands	6 Months Ended
	Jan. 31, 2020	Jul. 31, 2020	Jul. 31, 2019
Revenue (Textual)
Deferred revenue	$ 670	$ 362	$ 245
Process subscription payments fee percent	30.00%
Unsatisfied performance obligations, description	The Company also records deferred revenues related to the unsatisfied performance obligations with respect to subscription revenue. As of January 31, 2020, the Company's deferred revenue balance related to subscriptions was approximately $670,000, representing approximately 300,000 active subscribers. As of July 31, 2019, the Company's deferred revenue balance related to paid subscriptions was approximately $362,000, representing approximately 129,000 active subscribers.
Advertising revenue, description	(1) advertising; (2) subscriptions and Zedge Premium; and (3) in prior periods, service. Approximately 85% of the Company's revenue is generated from selling its advertising inventory ("Advertising Revenue") to advertising networks, advertising exchanges, and direct arrangements with advertisers.
Revenue from breakage	$ 62
Zedge Premium [Member]
Revenue (Textual)
Deferred revenue	$ 186		$ 155
Minimum [Member]
Revenue (Textual)
Payment terms	30 days
Maximum [Member]
Revenue (Textual)
Payment terms	60 days