Note 7 - Leases - Future Payments Due (Details)	Jan. 31, 2020 USD ($)
2020	$ 224,438	[1]
2021	264,041
2022	261,109
2023	254,919
2024	260,223
Thereafter	21,734
Total undiscounted lease payments	1,286,464
Present value discount	(142,206)
Accounts Payable and Accrued Liabilities and Noncurrent Liabilities [Member]
Total undiscounted lease liability	$ 1,144,258

[1] Remaining nine months of fiscal year 2020.