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Leases (Details) - Schedule of Future minimum lease payments under non-cancellable leases $ in Thousands | Jul. 31, 2020 USD ($)
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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

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- Definition 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 next 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. + References No definition available. + Details
Name: | zdge_OperatingLeaseFutureMinimumPaymentsDueCurrent
Namespace Prefix: | zdge_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References No definition available. + Details
Name: | zdge_OperatingLeasesFutureMinimumPaymentDue
Namespace Prefix: | zdge_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition 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. + References No definition available. + Details
Name: | zdge_OperatingLeasesFutureMinimumPaymentDueInThreeYears
Namespace Prefix: | zdge_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition 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 second 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. + References No definition available. + Details
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Namespace Prefix: | zdge_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | zdge_OperatingLeasesFutureMinimumPaymentsImputedInterest
Namespace Prefix: | zdge_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | zdge_OperatingLeasesFutureMinimumPaymentsTotal
Namespace Prefix: | zdge_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | zdge_ScheduleOfFutureMinimumLeasePaymentsUnderNonCancellableLeasesAbstract
Namespace Prefix: | zdge_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration