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Commitments and Contingencies (Details)
12 Months Ended
Jun. 30, 2021
USD ($)
Jun. 30, 2021
HKD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Aug. 31, 2021
USD ($)
Commitments and Contingencies (Details) [Line Items]          
Rent expense $ 942,606   $ 944,645 $ 827,593  
Total capital commitments 3,302,944 $ 25,650,000      
Total investments $ 500,304        
Subsequent Event [Member]          
Commitments and Contingencies (Details) [Line Items]          
Total investments         $ 206,032