Convertible Preference Shares of Subsidiary (Details) (USD $)				9 Months Ended		1 Months Ended		0 Months Ended						9 Months Ended		12 Months Ended		9 Months Ended					9 Months Ended						0 Months Ended		9 Months Ended			9 Months Ended				9 Months Ended	12 Months Ended
	Sep. 30, 2013	Aug. 27, 2013	Dec. 31, 2012	Sep. 30, 2013 Subsequent Event [Member] Convertible Preferred Stock [Member] Series C Preferred Stock [Member] MTDC [Member]	Sep. 30, 2013 Subsequent Event [Member] Convertible Preferred Stock [Member] Series C Preferred Stock [Member]	Oct. 31, 2013 Subsequent Event [Member] Convertible Preferred Stock [Member] PMSB [Member]	Oct. 31, 2013 Subsequent Event [Member] Series B Preferred Stock [Member] PMSB [Member]	Mar. 10, 2011 Private Placement [Member] Convertible Preferred Stock [Member] Series C Preferred Stock [Member] MTDC [Member]	Aug. 01, 2010 Private Placement [Member] MTDC [Member]	May 08, 2008 Private Placement [Member] MTDC [Member]	Apr. 03, 2009 Private Placement [Member] Issuance Of Series BCPS To EEV And PMSB [Member]	Jul. 01, 2009 Private Placement [Member] KMP [Member]	Sep. 30, 2013 WGBM [Member] Convertible Preferred Stock [Member] Series B Preferred Stock [Member]	Sep. 30, 2013 WGBM [Member] Convertible Preferred Stock [Member] Series C Preferred Stock [Member]	Sep. 30, 2013 WGBM [Member] Convertible Preferred Stock [Member]	Dec. 31, 2010 Convertible Preferred Stock [Member] Series B Preferred Stock [Member] KMP [Member]	Dec. 31, 2010 Convertible Preferred Stock [Member] Series B Preferred Stock [Member] EEV [Member]	Sep. 30, 2013 Convertible Preferred Stock [Member] Series B Preferred Stock [Member]	Sep. 30, 2012 Convertible Preferred Stock [Member] Series B Preferred Stock [Member]	Dec. 31, 2012 Convertible Preferred Stock [Member] Series B Preferred Stock [Member]	Dec. 31, 2011 Convertible Preferred Stock [Member] Series B Preferred Stock [Member]	Dec. 09, 2011 Convertible Preferred Stock [Member] Series A Preferred Stock [Member] MTDC [Member]	Sep. 30, 2013 Convertible Preferred Stock [Member] Series A Preferred Stock [Member]	Sep. 30, 2012 Convertible Preferred Stock [Member] Series A Preferred Stock [Member]	Dec. 31, 2012 Convertible Preferred Stock [Member] Series A Preferred Stock [Member]	Dec. 31, 2011 Convertible Preferred Stock [Member] Series A Preferred Stock [Member]	Dec. 09, 2011 Convertible Preferred Stock [Member] Series A Preferred Stock [Member] Maximum [Member]	Dec. 09, 2011 Convertible Preferred Stock [Member] Series A Preferred Stock [Member] Minimum [Member]	Dec. 14, 2010 Convertible Preferred Stock [Member] Series C Preferred Stock [Member] MTDC [Member]	Dec. 14, 2010 Convertible Preferred Stock [Member] Series C Preferred Stock [Member] Series C SSA [Member]	Sep. 30, 2013 Convertible Preferred Stock [Member] Series C Preferred Stock [Member]	Sep. 30, 2013 Convertible Preferred Stock [Member] Rights Of The Holders Of Series A And B CPS [Member]	Dec. 31, 2011 Common Stock [Member] Convertible Preferred Stock [Member] Maximum [Member]	Sep. 30, 2013 Common Stock [Member] MTDC [Member]	Sep. 30, 2013 Common Stock [Member] PMSB [Member]	Sep. 30, 2013 Common Stock [Member]	Sep. 30, 2013 Common Stock [Member] Minimum [Member]	Sep. 30, 2013 Rights Of The Holders Of Series A And B CPS [Member]	Dec. 31, 2011 Rights Of The Holders Of Series A And B CPS [Member]	Aug. 01, 2010 Rights Of The Holders Of Series A And B CPS [Member]
Convertible Preference Shares of Subsidiary (Details) [Line Items]
Sale of Stock, Price Per Share								$ 1.5462		$ 2.25	$ 2.25	$ 2.25																	$ 2.3193
Sale of Stock, Number of Shares Issued in Transaction (in Shares)								3,233,734								188,057	222,222												1,077,911	3,233,734
Share Price	$ 1.96								$ 263.09									$ 1.96	$ 7.95				$ 1.96	$ 7.95									$ 223.63		$ 1.99	$ 1.99				$ 223.63
Share Premium Percentage																																20.00%							8.00%
Number Of Trading Days																						10 days													10 days	10 days				10 days
Applicable Stock Price Calculation Percentage																						85.00%														85.00%				85.00%
Preferred Stock Conversion Rate				1																																		3
Denominator for Conversion of Preferred Stock (in Dollars)														$ 100																								$ 100
Shareholders' Equity, Fair Value Disclosure (in Dollars)																		1,300,923	1,334,545	1,210,909	1,245,101		424,794	1,563,664	619,652	2,135,715
Increase (Decrease) in Derivative Liabilities (in Dollars)																		90,014	89,444				194,858	572,051
Stock Repurchased During Period, Shares (in Shares)						444,444	444,444
Stock Repurchased During Period, Value (in Dollars)						70,000	70,000
Conversion of Stock Shares Issuable (in Shares)														1																				284,718	591,191
Applicable Stock Price																											$ 154.05	$ 9.94									$ 9.94
Option Indexed to Issuer's Equity, Redeemable Stock, Redemption Requirements, Amount (in Dollars)	$ 2,829,817
Conversion of Stock, Shares Converted (in Shares)				99.39	99.39
Conversion of Stock, Shares Issued (in Shares)					1
Debt Conversion, Converted Instrument, Issuance Date																															Apr. 03, 2014
Preferred Stock, Shares Authorized (in Shares)	10,000,000		10,000,000												200,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.001	$ 0.001	$ 0.001												$ 0.01
Preferred Stock, Shares Issued (in Shares)													410,279		4,977,345