Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical)

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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
Jun. 30, 2013
Dec. 31, 2012
Stockholders' deficit    
Common stock- par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 200,000,000 200,000,000
Common stock, shares issued (in shares) 25,331,943 24,732,312
Treasury stock, shares (in shares) 163 163
Series A Convertible Preferred Stock [Member]
   
Stockholders' deficit    
Convertible preferred stock - par value (in dollars per share) $ 0.01 $ 0.01
Convertible preferred stock- authorized (in shares) 2,000,000 2,000,000
Convertible preferred stock- shares issued (in shares) 2,913.3617 2,913.3617
Series B Convertible Preferred Stock [Member]
   
Stockholders' deficit    
Convertible preferred stock - par value (in dollars per share) $ 0.01 $ 0.01
Convertible preferred stock- authorized (in shares) 2,000,000 2,000,000
Convertible preferred stock- shares issued (in shares) 1,000.0 1,000.0