Building, Equipment, Furnishings and Leasehold Improvements (Details) - USD ($)	Feb. 28, 2022	Feb. 28, 2021
Property, Plant and Equipment [Line Items]
Totals	$ 8,461,695	$ 8,134,753
Less: Accumulated depreciation	(5,900,511)	(5,484,428)
Equipment, furnishings and leasehold improvements, net	2,561,184	2,650,325
Equipment, furnishings and leasehold improvements, net	2,561,184	2,650,325
Building [Member]
Property, Plant and Equipment [Line Items]
Totals	2,250,000	2,250,000
Laboratory Equipment [Member]
Property, Plant and Equipment [Line Items]
Totals	1,421,845	1,399,826
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Totals	1,729,587	1,548,415
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Totals	715,999	642,671
Tradeshow And Demonstration Equipment [Member]
Property, Plant and Equipment [Line Items]
Totals	1,137,346	1,137,346
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Totals	$ 1,206,918	$ 1,156,495