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Accounts receivable, net (Details Narrative) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Jun. 30, 2021
Receivables [Abstract]        
Accounts Receivable, Credit Loss Expense (Reversal) $ 70,000 $ 70,000 $ 0 $ 0