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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