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CONDENSED CONSOLIDATED BALANCE SHEETS [Parenthetical]
Jun. 30, 2012
USD ($)
Jun. 30, 2012
CNY
Dec. 31, 2011
USD ($)
Dec. 31, 2011
CNY
Allowance for doubtful accounts (in dollars) $ 880,587 5,596,250 $ 859,509 5,419,725
Common stock, par value (in dollars per share) $ 0.002731   $ 0.002731  
Common stock, shares authorized 18,307,038 18,307,038 18,307,038 18,307,038
Common stock, shares issued 4,570,000 4,570,000 4,560,000 4,560,000
Common stock, shares outstanding 4,570,000 4,570,000 4,560,000 4,560,000