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v3.21.2

Leases (Details) - Schedule of lease obligations | Jun. 30, 2020 USD ($)
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Schedule of lease obligations [Abstract] |
2022 | $ 39,600
Total lease payments | $ 39,600

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- Definition Total lease payments. + References No definition available. + Details
Name: | hht_OperatingLeasesFutureMinimumPaymentDue
Namespace Prefix: | hht_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Operating Leases Future Minimum Payment Due Current. + References No definition available. + Details
Name: | hht_OperatingLeasesFutureMinimumPaymentDueCurrent
Namespace Prefix: | hht_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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