Property, Plant and Equipment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 36,639,460	$ 37,575,736
Depreciable property, plant and equipment	36,639,460	37,575,736
Less: Accumulated depreciation and amortization	(30,983,448)	(28,484,708)
Net property, plant and equipment	5,656,012	9,091,028
Depreciation expense	3,487,000	5,583,000
Building [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	5,828,960	5,828,960
Furniture, fixtures, computer hardware and computer software [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	489,421	480,976
Manufacturing machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	30,321,079	31,265,800
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 0	$ 0