Property, Plant and Equipment (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 37,627,646		$ 37,627,646		$ 37,598,452
Net depreciable property, plant and equipment	37,557,361		37,557,361		37,531,749
Less: Accumulated depreciation and amortization	(25,771,754)		(25,771,754)		(22,941,264)
Net property, plant and equipment	11,855,892		11,855,892		14,657,188
Depreciation expense	1,401,003	$ 1,493,944	2,830,490	$ 2,961,690
Building [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	5,828,960		5,828,960		5,828,960
Furniture, fixtures, computer hardware and computer software [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	480,976		480,976		475,266
Manufacturing machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	31,247,425		31,247,425		31,227,523
Manufacturing machinery and equipment in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 70,285		$ 70,285		$ 66,703