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Prepayments and Advances (Details) - Schedule of Prepayments, non-current - USD ($) | Jun. 30, 2021 | Jun. 30, 2020
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Schedule of Prepayments, non-current [Abstract] |  |
Prepayment for software development expenditure | $ 52,000,000 |

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- Definition The amount is prepayment for software development expenditure. + References No definition available. + Details
Name: | hht_PrepaymentForSoftwareDevelopmentExpenditure
Namespace Prefix: | hht_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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