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Significant Accounting Policies (Details Narrative) - USD ($) | 12 Months Ended
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Feb. 29, 2020 | Feb. 28, 2019
Advertising expense | $ 297,297 | $ 246,681
Bad debt expense | $ 25,000 | $ 0
Concentration of Credit Risk | The Company does not believe that it is subject to any unusual or significant risks, in the normal course of business. The Company had three customers, which accounted for 30% of sales during fiscal 2020. Three customers accounted for 67% of the outstanding accounts receivables at February 29, 2020. | The Company had one customer, which accounted for 14% of sales during fiscal 2019. Two customers accounted for 41% of the outstanding accounts receivables at February 28, 2019.
Marketable securities including mutual funds | $ 4,219,240 | $ 2,365,706
Accumulated amortization of patents | $ 171,210 | 160,433
Annual Amortization Expense of Intangible Assets For the Next Five Years |  |
Annual amortization expense this year |  | 11,000
Annual amortization expense year two |  | 11,000
Annual amortization expense year three |  | 11,000
Annual amortization expense year four |  | 11,000
Annual amortization expense year five |  | $ 11,000
Buildings |  |
Annual Amortization Expense of Intangible Assets For the Next Five Years |  |
Property, plant and equipment, estimated useful lives | 40 Years |
Domestic Patents |  |
Useful life of intangible assets | 17 years |
Foreign Patents |  |
Useful life of intangible assets | 12 years |

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