Note 7 - Leases - Future Payments Due (Details)	Jan. 31, 2023 USD ($)
2023, operating lease	$ 329,201
2023, finance lease	32,151
2024, operating lease	448,298
2024, finance lease	42,868
2025, operating lease	177,997
2025, finance lease	42,868
2026, operating lease	63,644
2026, finance lease	55,715
Total undiscounted lease payments, operating lease	1,019,140
Total undiscounted lease payments, finance lease	173,602
Present value discount, operating lease	(90,223)
Present value discount, finance lease	(15,740)
Total lease liability, operating lease	928,917
Total lease liability, finance lease	$ 157,862

Present value of lessee's discounted obligation for lease payments from finance lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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