Schedule of Property and Equipment (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 8,827,425	$ 8,824,314
Less: Accumulated depreciation	(8,632,296)	(8,573,871)
Net property and equipment	195,129	250,443
Equipment [Member]
Property, Plant and Equipment [Line Items]
Gross property and equipment	6,488,984	6,485,873
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 2,338,441	$ 2,338,441

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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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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