Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Property and Equipment (Details) - USD ($)	3 Months Ended		9 Months Ended
Property and Equipment (Details) - USD ($)	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Property, Plant and Equipment
Property and equipment	$ 2,689,291		$ 2,689,291		$ 2,752,972
Less accumulated depreciation	(2,261,253)		(2,261,253)		(2,132,299)
Property and equipment, net	428,038		428,038		620,673
Depreciation of property and equipment	67,385	$ 66,527	202,957	$ 202,399
Furniture and Fixtures
Property, Plant and Equipment
Property and equipment	345,712		345,712		345,712
Laboratory Equipment
Property, Plant and Equipment
Property and equipment	1,406,346		1,406,346		1,446,596
Office Equipment
Property, Plant and Equipment
Property and equipment	17,762		17,762		16,755
Computer Equipment
Property, Plant and Equipment
Property and equipment	303,338		303,338		327,776
Leasehold Improvements
Property, Plant and Equipment
Property and equipment	$ 616,133		$ 616,133		$ 616,133