XML 1044 R61.htm IDEA: XBRL DOCUMENT v2.4.0.6
Stockholders' Equity (Details 4) (USD $)
 9 Months Ended 12 Months Ended
Dec. 31, 2003
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2007
Mar. 31, 2003
Mar. 31, 2002
Mar. 31, 2000
Sep. 30, 2012
Sep. 30, 2012
April 2006 stock issuance
Dec. 31, 2011
April 2006 stock issuance
Sep. 30, 2012
February 2007 stock issuance
Dec. 31, 2011
February 2007 stock issuance
Sep. 30, 2012
December 2007 CEFF
Dec. 31, 2011
December 2007 CEFF
Dec. 31, 2011
July 2009 Series II stock issuance
Sep. 30, 2012
January 2010 stock issuance, one
Dec. 31, 2011
January 2010 stock issuance, one
Sep. 30, 2012
January 2010 stock issuance, two
Dec. 31, 2011
January 2010 stock issuance, two
Sep. 30, 2012
October 2010 stock issuance
Dec. 31, 2011
October 2010 stock issuance
Oct. 07, 2010
October 2010 stock issuance
Sep. 30, 2012
July 2011 stock issuance
Dec. 31, 2011
July 2011 stock issuance
Warrants outstanding                                                
Warrants outstanding   1,973,427           1,973,427 367,347 367,347 151,773 151,773 14,285 14,285 98,893 101,785 101,785 100,714 100,714 594,514 594,513   544,117 544,117
Weighted Average Exercise Price (in dollars per share)   $ 22.96           $ 22.96 $ 49.00 $ 49.00 $ 59.08 $ 59.08 $ 9.80 $ 9.80 $ 7.00 $ 22.82 $ 22.82 $ 19.95 $ 19.95 $ 13.44 $ 13.44 $ 13.44 $ 9.52 $ 9.52
Exercise of Stock Options                                                
Stock option exercised (in shares)   948 24,902                                          
Proceeds from exercise of stock options $ 115,000 $ 3,000 $ 77,000 $ 163,000 $ 12,000 $ 106,000 $ 40,000