Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

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Consolidated Balance Sheets (Parenthetical) (USD $)
Dec. 31, 2011
Dec. 31, 2010
Consolidated Balance Sheets [Abstract]    
Series A and B redeemable preferred stock, par value $ 0.001 $ 0.001
Series A and B redeemable preferred stock, liquidation preference $ 25 $ 25
Series A and B redeemable preferred stock, shares authorized 2,300,000 2,300,000
Series A and B redeemable preferred stock, shares issued 2,150,000 2,150,000
Series A and B redeemable preferred stock, shares outstanding 2,150,000 2,150,000
Senior common stock, par value $ 0.001 $ 0.001
Senior common stock, shares authorized 7,500,000 7,500,000
Senior common stock, shares issued 60,290 59,057
Senior common stock, shares outstanding 60,290 59,057
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 40,200,000 40,200,000
Common stock, shares issued 10,945,379 8,724,613
Common stock, shares outstanding 10,945,379 8,724,613