COMMITMENTS - Schedule of lease commitments by fiscal year (Details)	Nov. 30, 2019 USD ($)
Product Liability Contingency [Line Items]
2020	$ 68,442
2021	148,173
2022	125,618
2023	120,979
2024	123,986
2025 and beyond	300,660
Wilmington, MA
Product Liability Contingency [Line Items]
2020	24,987
2021	115,371
2022	117,972
2023	120,979
2024	123,986
2025 and beyond	300,660
Fort Wayne, IN
Product Liability Contingency [Line Items]
2020	30,357
2021	30,585
2022	7,646
2023	0
2024	0
2025 and beyond	0
South Africa
Product Liability Contingency [Line Items]
2020	13,098
2021	2,217
2022	0
2023	0
2024	0
2025 and beyond	$ 0

Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980

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