Warrants (Details Textual) (USD $)	12 Months Ended										12 Months Ended		12 Months Ended					1 Months Ended		1 Months Ended	12 Months Ended					12 Months Ended		12 Months Ended					12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Oct. 09, 2012	Jun. 30, 2012	Mar. 01, 2011	Feb. 09, 2011	Jan. 28, 2011	Jan. 21, 2011	Dec. 31, 2012 Maximum [Member]	Dec. 31, 2012 Minimum [Member]	Dec. 31, 2012 Private Placement [Member]	Jun. 16, 2011 Private Placement [Member]	Dec. 31, 2012 Placement Agent [Member]	Dec. 31, 2012 Warrant Liability [Member]	Dec. 31, 2011 Warrant Liability [Member]	Dec. 31, 2012 Warrant Liability [Member] Maximum [Member]	Dec. 31, 2012 Warrant Liability [Member] Minimum [Member]	Oct. 31, 2012 Debt Warrants [Member]	Oct. 09, 2012 Debt Warrants [Member]	Oct. 31, 2012 Debt Warrants Post Modification [Member]	Dec. 31, 2012 Debt Warrants Post Modification [Member]	Oct. 09, 2012 Debt Warrants Post Modification [Member]	Dec. 31, 2012 Debt Warrants Post Modification [Member] Maximum [Member]	Dec. 31, 2012 Debt Warrants Post Modification [Member] Minimum [Member]	Dec. 31, 2012 Prior Warrants [Member]	Dec. 31, 2012 Equity [Member]	Dec. 31, 2011 Equity [Member]	Dec. 31, 2012 Equity [Member] Private Placement [Member]	Mar. 01, 2011 Series D Preferred Stock [Member]	Feb. 09, 2011 Series D Preferred Stock [Member]	Jan. 28, 2011 Series D Preferred Stock [Member]	Jan. 21, 2011 Series D Preferred Stock [Member]	Dec. 31, 2012 Series D Preferred Stock [Member] Placement Agent [Member]	Dec. 31, 2012 Series D Preferred Stock [Member] Warrant Liability [Member]	Dec. 31, 2011 Series D Preferred Stock [Member] Warrant Liability [Member]	Dec. 31, 2012 Issued in August [Member] Equity [Member]	Dec. 31, 2011 Issued in August [Member] Equity [Member]	Aug. 03, 2011 Issued in August [Member] Equity [Member]
Warrants (Textual) [Abstract]
Class of warrant or rights issued to purchase common stock	105,232,857																		14,069,696		105,232,857				7,770,902
Warrant Exercise Price					0.50	0.50	0.50	0.50	0.30	0.25	0.63	0.90	0.55			0.50	0.25		0.30			0.10	0.30	0.25										0.10		0.75		0.75
Increase the number of shares of Common Stock underlying the Debt Warrants																			3			2
Extend the expiration period of the Debt Warrants																		1 year			1 year
Extend the expiration date of the Debt Warrants																				Jun. 01, 2018
Number of Warrants issued to placement agent													1,252,761
Purchase of common stock warrant	153,299,031	49,135,602										152,711		4,028,000	33,236,820											149,271,031	15,898,782		8,000	549,760	226,240	197,440		995,000	15,446,640	14,493,310	14,493,310	14,493,310
Weighted average fair market value											0.62
Interest rate volatility																										61.60%		61.40%
Tenure of issuance warrant	5 years																									5 years		5 years
Interest rate	1.60%	2.10%																								1.52%							1.25%
Dividend yield																										0.00%		0.00%
Closing price per share											$ 1.08		$ 0.31
Warrants (Additional Textual) [Abstract]
Warrants exercised		4,837,291
Expected future financing	$ 0
Cashless warrants exercised	125,000	6,387,235
Warrants exercised receipts		2,400,000
Rate of notes				12.50%
Classification of liability-classified warrants	1,333,372,249
Warrants liability reclassified to equity			$ 15,048,000
Issuance of shares		4,837,291
Issuance of shares resulting from exercise of cashless warrants	62,406	3,572,971
Term of warrant callable at specified price within consecutive trading days	20 days
Condition for callable warrant	The warrants are callable by the Company if the common stock trades over $1.75 for 20 consecutive trading days.