Preferred Shares (Details Textual) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended		12 Months Ended
	Oct. 17, 2013	Jul. 25, 2013	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Class of Stock [Line Items]
Debt Instrument, Convertible, Beneficial Conversion Feature			$ 11,882,000
Derivative Preferred Shares Conversion Liability			46,325,000		40,791,000
Fair Value Adjustment of Warrants			(3,149,000)		9,929,000
Reclassification From Derivative Liability To Equity	97,000				6,518,000
Derivative, Gain (Loss) on Derivative, Net	5,000	5,035,000	(8,773,000)	87,000	(49,330,000)
Warrant [Member]
Class of Stock [Line Items]
Derivative Liability					1,886,000
Preferred Stock [Member]
Class of Stock [Line Items]
Derivative Liability					5,064,000
Conversion of Stock, Shares Converted	23,227				1,132,875
Common Stock [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues One					0
Conversion of Stock, Shares Issued	232,270				11,328,750
Convertible Notes Payable One [Member]
Class of Stock [Line Items]
Debt Conversion, Original Debt, Amount					5,491,000
Warrants Issued During Period Number Of Warrants One					4,999,999
Warrants Issued During Period Exercise Price Of Warrants One					$ 0.14
Fair Value Adjustment of Warrants					759,000
Payments of Stock Issuance Costs					350,000
Convertible Notes Payable One [Member] | Warrant [Member]
Class of Stock [Line Items]
Derivative Liability					1,644,000
Convertible Notes Payable One [Member] | Preferred Stock [Member]
Class of Stock [Line Items]
Derivative Liability					3,804,000
Convertible Notes Payable Two [Member]
Class of Stock [Line Items]
Warrants Issued During the Period, Number of Warrants					1,645,361
Warrants Issued During the Period, Exercise Price of Warrants					$ 0.14
Debt Conversion, Original Debt, Amount					829,277
Convertible Notes Payable Two [Member] | Warrant [Member]
Class of Stock [Line Items]
Derivative Liability					674,000
Convertible Notes Payable Two [Member] | Preferred Stock [Member]
Class of Stock [Line Items]
Derivative Liability					155,000
Series B redeemable convertible preferred stock [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Authorized					10,016,080
Preferred Stock, Initial Stated Value Per Share					$ 1.40
Preferred Stock, Par or Stated Value Per Share					$ 0.01
Debt Instrument, Convertible, Number of Equity Instruments					10
Preferred Stock, Dividend Rate, Percentage					10.00%
Debt Instrument, Convertible, If-initial public offering proceeds meets Least amount					7,000,000
Stock Issued During Period, Shares, New Issues One					4,999,999
Warrants Issued During the Period, Number of Warrants					12,499,996
Warrants Issued During the Period, Exercise Price of Warrants					$ 0.14
Warrants Issued During the Period, Value of Warrants					$ 7,000,000
Series B redeemable convertible preferred stock [Member] | Convertible Notes Payable One [Member]
Class of Stock [Line Items]
Warrants Issued During the Period, Number of Warrants					10,894,839
Warrants Issued During the Period, Exercise Price of Warrants					$ 0.14
Debt Conversion, Converted Instrument, Shares Issued					4,357,936
Series B redeemable convertible preferred stock [Member] | Convertible Notes Payable Two [Member]
Class of Stock [Line Items]
Debt Conversion, Converted Instrument, Shares Issued					658,145