CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues {1}
Product revenue	$ 18,446,082	$ 20,791,874	$ 19,591,786
Service revenue	6,658,816	3,615,253	3,631,479
Research and development contract revenue	1,496,530	1,701,330	3,886,114
Licensed technology revenue	0	0	516,563
Total revenue	26,601,428	26,108,457	27,625,942
Cost of product revenue	20,414,084	25,353,541	22,625,306
Cost of service revenue	14,928,595	12,304,158	8,044,296
Cost of research and development contract revenue	2,505,989	2,804,817	6,232,210
Research and development expense	3,121,007	5,434,235	5,655,748
Selling, general and administrative expenses	12,325,466	14,576,998	14,545,965
Gain on sale of assets	0	0	(673,358)
Amortization of intangible assets	2,270,858	2,306,489	2,322,876
Operating loss	(28,964,571)	(36,671,781)	(31,127,101)
Interest and other income	150,006	226,120	248,430
Change in fair value of common stock warrant liability	(37,101,818)	4,845,165	3,447,153
Interest and other expense and foreign currency gain (loss)	(398,275)	(261,958)	(22,436)
Gain on sale of equity interest in joint venture	3,234,717	0	0
Loss before income taxes	(63,079,941)	(31,862,454)	(27,453,954)
Income tax benefit	410,259	0	0
Net loss attributable to the Company	(62,669,682)	(31,862,454)	(27,453,954)
Preferred stock dividends declared	(121,118)	0	0
Net loss attributable to common shareholders	$ (62,790,800)	$ (31,862,454)	$ (27,453,954)
Loss per share:
Basic and diluted	$ (0.82)	$ (0.93)	$ (1.46)
Weighted average number of common shares outstanding	76,436,408	34,376,427	18,778,066