Property, Plant and Equipment, net (Property, Plant and Equipment, net) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment
Total property, plant and equipment	$ 23,716,816	$ 23,677,016
Less: accumulated depreciation	(19,914,900)	(18,545,243)
Property, plant and equipment, net	3,801,916	5,131,773
Machinery and Equipment [Member]
Property, Plant and Equipment
Total property, plant and equipment	18,129,460	17,978,781
Building and improvements, maximum
Property, Plant and Equipment
Total property, plant and equipment	3,991,951	3,991,951
Vehicles, maximum
Property, Plant and Equipment
Total property, plant and equipment	100,096	98,119
Furniture, fixtures, computers and software, maximum
Property, Plant and Equipment
Total property, plant and equipment	1,470,102	1,440,071
Construction in Progress [Member]
Property, Plant and Equipment
Total property, plant and equipment	$ 25,207	$ 168,094
Maximum | Machinery and Equipment [Member]
Property, Plant and Equipment
Asset Lives (in years)	15 years
Maximum | Building and improvements, maximum
Property, Plant and Equipment
Asset Lives (in years)	25 years
Maximum | Vehicles, maximum
Property, Plant and Equipment
Asset Lives (in years)	5 years
Maximum | Furniture, fixtures, computers and software, maximum
Property, Plant and Equipment
Asset Lives (in years)	5 years
Minimum | Machinery and Equipment [Member]
Property, Plant and Equipment
Asset Lives (in years)	3 years
Minimum | Building and improvements, maximum
Property, Plant and Equipment
Asset Lives (in years)	5 years
Minimum | Vehicles, maximum
Property, Plant and Equipment
Asset Lives (in years)	3 years
Minimum | Furniture, fixtures, computers and software, maximum
Property, Plant and Equipment
Asset Lives (in years)	3 years