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Consolidated Statements of Preferred Stock and Stockholders' Equity (Deficit) (Parenthetical) (Unaudited) (USD $)
Jan. 03, 2005
Series A [Member]
Cash, Net of Offering Costs
Sep. 30, 2004
Series A [Member]
Cash, Net of Offering Costs
Dec. 31, 2002
Series A [Member]
Cash, Net of Offering Costs
Feb. 22, 2006
Series A [Member]
Issuance of Series A on February 22, 2006
Dec. 08, 2006
Series A [Member]
Issuance of Series A on December 8, 2006
Jan. 03, 2005
Series A [Member]
Issuance for Notes Payable and Related Accrued Interest on January 3, 2005
Feb. 22, 2006
Series A [Member]
Issuance for Notes Payable and Related Accrued Interest on February 22, 2006
Oct. 14, 2005
Series A [Member]
Issuance For Intellectual Property License Rights On October 14, 2005
Feb. 21, 2006
Series A [Member]
Issuance for Intellectual Property License Rights on February 21, 2006
Feb. 22, 2006
Series A [Member]
Issuance for Intellectual Property License Rights on February 22, 2006
Jun. 23, 2006
Series A [Member]
Issuance For Intellectual Property License Rights On June 23, 2006
Nov. 07, 2006
Series A [Member]
Issuance for Intellectual Property License Rights on November 7, 2006
Jan. 18, 2007
Series A [Member]
Issuance for Intellectual Property License Rights on January 18, 2007
Jun. 30, 2007
Series A [Member]
Issuance for Intellectual Property License Rights on June 30, 2007
May 31, 2007
Series B [Member]
Issuance for Series B on May 31, 2007
Dec. 28, 2007
Series B [Member]
Issuance for Series B on December 28, 2007
Common stock, par value $ 0.06 $ 0.06 $ 0.06 $ 1.6265 $ 1.6265 $ 0.06 $ 1.6265 $ 8.14 $ 0.72 $ 0.72 $ 0.90 $ 0.90 $ 1.68 $ 1.80    
Preferred stock, par value                             $ 2.439 $ 3.253