Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)	May 31, 2025	Feb. 28, 2025	Nov. 30, 2024
Trade accounts and notes receivable, allowance for doubtful accounts		$ 50,129	$ 51,103
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment		159,414	159,414
Definite lived intangible assets, accumulated amortization		$ 144,625	$ 142,664
Preferred Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.001		$ 0.001
Preferred shares, authorized (in shares)	4,000,000		4,000,000
Preferred Stock, Shares Outstanding (in shares)	0		0
Common stock, par value (in dollars per share)	$ 0.001		$ 0.001
Common stock, authorized (in shares)	15,000,000		15,000,000
Common stock, issued (in shares)	8,466,953		8,466,953
Common stock, outstanding (in shares)	7,263,508		7,263,508
Series A Preferred Stock [Member]
Preferred Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.001		$ 0.001
Preferred shares, authorized (in shares)	1,000,000		1,000,000
Preferred Stock, Shares Outstanding (in shares)	0		0