PROPERTY, PLANT AND EQUIPMENT - Schedule of Property, Plant and Equipment (Details) - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Depreciable property, plant and equipment	$ 22,483,386	$ 22,425,935
Less: Accumulated depreciation and amortization	(22,158,146)	(22,146,273)
Property, Plant and Equipment, net	325,240	279,662
Furniture, fixtures, computer hardware and computer software
Property Plant And Equipment [Line Items]
Depreciable property, plant and equipment	494,897	473,448
Manufacturing machinery and equipment
Property Plant And Equipment [Line Items]
Depreciable property, plant and equipment	21,867,097	21,863,624
Manufacturing machinery and equipment, in progress
Property Plant And Equipment [Line Items]
Depreciable property, plant and equipment	$ 121,392	$ 88,863

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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