Leases (Details) - Schedule of Future minimum lease payments under non-cancellable leases $ in Thousands	Jul. 31, 2020 USD ($)
Schedule of Future minimum lease payments under non-cancellable leases [Abstract]
2022	$ 88
2023	96
2024	50
Total future minimum lease payments	234
Less imputed interest	3
Total	$ 231

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

No definition available.

Name:	zdge_OperatingLeasesFutureMinimumPaymentDueInThreeYears
Namespace Prefix:	zdge_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant