Business, Liquidity and Summary of Significant Accounting Policies (Detail Textuals) (USD $)	0 Months Ended	1 Months Ended
	Mar. 07, 2014	Feb. 24, 2014	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accumulated deficit			$ (343,591,000)	$ (331,311,000)
Working capital surplus			1,000,000
Unrestricted cash			3,203,000	909,000	441,000	216,000
Aggregate principal and interest amount of promissory notes		1,500,000
Number of shares issuable through promissory notes		2,000,000
Business, Going Concern And Summary Of Significant Accounting Policies [Line Items]
Sale of warrants to purchase one share of common stock	6,000,000
Exercise price of warrants	$ 0.75
Proceeds from sales of Series C preferred shares and warrants, net	6,000,000
Series C Preferred Stock
Business, Going Concern And Summary Of Significant Accounting Policies [Line Items]
Sale of Series C Convertible Preferred Stock to purchase one share of common stock	1,200
Sale of warrants to purchase one share of common stock	6,000,000
Exercise price of warrants	$ 0.75
Proceeds from sales of Series C preferred shares and warrants, net	$ 6,000,000
Stated value per share of preferred stock	$ 5,000
Conversion price per dollar of stated value	$ 0.75
Shares issued upon conversion	8,000,000