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14. Warrant liabilities (Details Narrative) - USD ($)
6 Months Ended 9 Months Ended
Dec. 30, 2020
Mar. 31, 2021
Warrant liability [Member]    
Derivative liability   $ 905,713
Change in fair value   161,959
Private Placement [Member] | Series A Convertible Preferred Stock [Member]    
Proceeds from sale of equity $ 345,000  
Change in fair value   $ (88,714)
Private Placement [Member] | Series A Convertible Preferred Stock [Member] | Placement Agent [Member]    
Warrants issued 2,415  
Warrant exercise price $ 10.00  
Warrant term 5 years  
Derivative liability $ 8,047