Note 10 - Other Loans Payable - Other Loans Payable (Details) - USD ($)	Jul. 31, 2021	Jul. 31, 2020
Current portion	$ 10,075,231
Other Loans Payable, Noncurrent		19,869,477
Other Loans Payable [Member]
Other Loans Payable	257,462	307,092
Current portion	191,510
Other Loans Payable, Noncurrent	65,952	307,092
Other Loans Payable [Member] | Government Loan Payable [Member]
Other Loans Payable		307,092
Current portion
Other Loans Payable, Noncurrent		307,092
Other Loans Payable [Member] | Promissory Note [Member]
Other Loans Payable	257,462
Current portion	191,510
Other Loans Payable, Noncurrent	$ 65,952