| Note 1 - Nature of Operations (Details Textual) | Aug. 31, 2025  ft² | 
|---|---|
| Number of Stores | 4 | 
| Number of Facilities | 3 | 
| Fort Wayne, Indiana [Member] | |
| Area of Real Estate Property (Square Foot) | 30,000 | 
| Fort Wayne, Indiana 2 [Member] | |
| Area of Real Estate Property (Square Foot) | 10,000 | 
| Pretoria South Africa [Member] | |
| Area of Real Estate Property (Square Foot) | 20,000 | 
| X | ||||||||||
| 
- Definition Represents the number of operating facilities. No definition available. 
 | 
| X | ||||||||||
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- Definition Area of a real estate property. No definition available. 
 | 
| X | ||||||||||
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- Definition Represents the number of stores. No definition available. 
 | 
| X | ||||||||||
| 
- Details 
 | 
| X | ||||||||||
| 
- Details 
 | 
| X | ||||||||||
| 
- Details 
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