PROPERTY, PLANT AND EQUIPMENT - Schedule of Property, Plant and Equipment (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Depreciable property, plant and equipment	$ 22,705,921	$ 22,425,935
Less: Accumulated depreciation and amortization	(22,171,192)	(22,146,273)
Property, Plant and Equipment, net	534,729	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	21,850,530	21,863,624
Leasehold improvements
Property Plant And Equipment [Line Items]
Depreciable property, plant and equipment	92,376
Manufacturing machinery and equipment, in progress
Property Plant And Equipment [Line Items]
Depreciable property, plant and equipment	$ 268,118	$ 88,863