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Related Party Transactions (Details) - Schedule of other payables - related party - USD ($) | Jun. 30, 2021 | Jun. 30, 2020
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Weili He [Member] |  |
Related Party Transaction [Line Items] |  |
Other payables – related party | $ 10,711 | $ 10,711

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- Definition Carrying amount as of the balance sheet date of obligations due all sharesholders. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer). + References No definition available. + Details
Name: | hht_DueToShareholdersCurrent
Namespace Prefix: | hht_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=hht_WeiliHeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |