Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

 v2.3.0.11
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
Jun. 30, 2011
Dec. 31, 2010
Condensed Consolidated Balance Sheets    
Common stock subject to conditional redemption, shares issued 112,371 112,371
Common stock subject to conditional redemption, shares outstanding 112,371 112,371
Convertible preferred stock, par value $ 0.001 $ 0.001
Convertible preferred stock, shares authorized 833,333 833,333
Convertible preferred stock, shares issued 0 0
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 33,333,333 33,333,333
Common stock, shares issued 20,676,547 20,620,917
Treasury stock, shares 1,118,222 1,111,999