Property, Plant and Equipment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Summary of property, plant and equipment
Land	$ 278,325	$ 278,325
Building and Improvements	9,563,406	9,563,406
Manufacturing and warehouse equipment	11,959,563	10,699,461
Office equipment and furniture	1,880,387	1,778,781
Leasehold improvements	587,183	577,068
Finance leases - right to use	113,741	45,951
Vehicles	10,020	10,020
Construction in process	464,203	142,612
Property, plant and equipment, gross	24,856,828	23,095,624
Less accumulated depreciation	(14,754,866)	(13,757,397)
Property, plant and equipment, net	$ 10,101,962	$ 9,338,227
Building and Improvements [Member]
Summary of property, plant and equipment
Estimated Useful Life	30 years
Manufacturing and warehouse equipment [Member] | Minimum [Member]
Summary of property, plant and equipment
Estimated Useful Life	6 years
Manufacturing and warehouse equipment [Member] | Maximum [Member]
Summary of property, plant and equipment
Estimated Useful Life	20 years
Office equipment and furniture [Member] | Minimum [Member]
Summary of property, plant and equipment
Estimated Useful Life	3 years
Office equipment and furniture [Member] | Maximum [Member]
Summary of property, plant and equipment
Estimated Useful Life	5 years
Leasehold improvements [Member] | Minimum [Member]
Summary of property, plant and equipment
Estimated Useful Life	10 years
Leasehold improvements [Member] | Maximum [Member]
Summary of property, plant and equipment
Estimated Useful Life	15 years
Finance leases - right to use [Member]
Summary of property, plant and equipment
Estimated Useful Life	5 years
Vehicles [Member]
Summary of property, plant and equipment
Estimated Useful Life	3 years