Note 9 - Long-term Debt - Long-term Debt (Details) - USD ($)	Oct. 31, 2020	Jul. 31, 2020
Long-term Debt, Gross	$ 20,000,000	$ 20,000,000
Unamortized discount and accrued fees	313,344	(130,523)
Long-term debt, net of unamortized discount	20,313,344	19,869,477
Current portion	2,000,000
Long-term debt, net of current portion	$ 18,313,344	$ 19,869,477

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt discount (premium).

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