Convertible Preference Shares of Subsidiary (Details) - Transactions, along with the issuance of Series C CPS (USD $)	0 Months Ended	9 Months Ended										9 Months Ended
	May 27, 2011	Sep. 30, 2013	Sep. 30, 2013 07/18/2008 [Member] Convertible Preferred Stock [Member] Series A Preferred Stock [Member]	Sep. 30, 2013 11/27/2008 [Member] Convertible Preferred Stock [Member] Series A Preferred Stock [Member]	Sep. 30, 2013 06/08/2009 [Member] Series B Preferred Stock [Member]	Sep. 30, 2013 03/09/2010 [Member] Convertible Preferred Stock [Member] Series B CPS [Member]	Sep. 30, 2013 09/23/2009 [Member] Convertible Preferred Stock [Member] Series B Preferred Stock [Member]	Sep. 30, 2013 05/13/2010 [Member] Convertible Preferred Stock [Member] Series B Preferred Stock [Member]	Sep. 30, 2013 09/18/2009 [Member] Convertible Preferred Stock [Member] Series C Preferred Stock [Member]	Sep. 30, 2013 03/10/2011 [Member] Convertible Preferred Stock [Member] Series C Preferred Stock [Member]	May 26, 2011 Series A Preferred Stock [Member]	Sep. 30, 2013 Subtotal [Member]	Sep. 30, 2013 Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Number of CPS (in Shares)			444,444	444,444	111,111	111,111	222,222	222,222	188,057	3,233,734	9.939	1,743,611	4,977,345
Initial Investor			MTDC	MTDC	EEV	EEV	PMSB	PMSB	KMP	MTDC
Gross Proceeds	$ 30,550,000		$ 1,000,000	$ 1,000,000	$ 250,000	$ 250,000	$ 500,000	$ 500,000	$ 423,128	$ 5,000,000		$ 3,923,128	$ 8,923,128
Issuance (Costs)	2,524,963	2,791,359	(30,000)	(30,000)	(19,393)	(8,929)	(7,500)	(5,000)	(11,319)	(6,272)		(112,141)	(118,413)
Exchange Gain (loss)					(18,029)	(3,005)				58,575		(21,034)	37,541
Net Cash Proceeds	$ 30,550,000		$ 970,000	$ 970,000	$ 212,578	$ 238,066	$ 492,500	$ 495,000	$ 411,809	$ 5,052,303		$ 3,789,953	$ 8,842,256
Date if Exchanged					08/17/2010	08/17/2010			09/29/2010
CPS Outstanding (in Shares)			444,444	444,444			222,222	222,222		3,233,734		1,333,332	4,567,066