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Balance Sheets (Parenthetical) (USD $)
Dec. 31, 2011
Dec. 31, 2010
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 8,028,779 7,822,314
Common stock, shares outstanding 8,028,779 7,822,314
Redeemable Convertible Preferred Stock
   
Redeemable convertible preferred stock, par value $ 0.01 $ 0.01
Redeemable convertible preferred stock, shares authorized 1,000,000 1,000,000
Redeemable convertible preferred stock, shares issued 168 168
Redeemable convertible preferred stock, shares outstanding 168 168
Redeemable convertible preferred stock, liquidation value $ 168,496 $ 168,496