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Prepaid Expenses and Other Current Assets (Tables)
9 Months Ended
Mar. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of prepaid expenses and other assets
   March 31,   June 30, 
   2021   2020 
Prepaid income taxes  $210,913   $48,924 
Other (including prepaid professional fees, rent, listing fees)   15,923    41,458 
Total  $226,836   $90,382