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v3.21.2

Property, Plant and Equipment, Net (Details) - USD ($) | 12 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019
Property, Plant and Equipment [Abstract] |  |  |
Depreciation expense | $ 1,536,178 | $ 0 | $ 0

X
- Definition Depreciation expense. + References No definition available. + Details
Name: | hht_DepreciationExpense
Namespace Prefix: | hht_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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