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Long term debt (Details) - USD ($)
9 Months Ended
Mar. 31, 2021
Jun. 30, 2021
Debt Instrument [Line Items]    
Other Long-term Debt $ 82,000  
Other Short-term Borrowings 41,000  
Unsecured Debt [Member]    
Debt Instrument [Line Items]    
Unsecured Long-term Debt, Noncurrent   $ 444,259
Secured Debt [Member]    
Debt Instrument [Line Items]    
Long-Term Debt, Maturity, Year One 234  
Long-Term Debt, Maturity, Year Two 2,870  
Long-Term Debt, Maturity, Year Three 2,980  
Long-Term Debt, Maturity, Year Four 3,094  
Long-Term Debt, Maturity, Year Five 3,212  
Long-term Debt 150,000  
Long-Term Debt, Maturity, after Year Five 137,610  
Interest Expense, Debt $ 4,219