Property and Equipment (Schedule of Property and Equipment) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property and equipment	$ 3,871,035	$ 4,124,028
Production machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives, property and equipment	5 years
Property and equipment	$ 1,427,472	1,446,551
Other machinery and equipment, primarily computers and research equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	$ 421,318	602,974
Other machinery and equipment, primarily computers and research equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives, property and equipment	3 years
Other machinery and equipment, primarily computers and research equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives, property and equipment	5 years
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives, property and equipment	7 years
Property and equipment	$ 648,131	670,567
Software [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives, property and equipment	3 years
Property and equipment	$ 476,530	476,530
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Useful life, non-numeric	Term of Lease
Property and equipment	$ 897,584	$ 927,406