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Accounts Receivable
9 Months Ended
Sep. 30, 2011
Notes to Financial Statements 
Accounts Receivable

4.  ACCOUNTS RECEIVABLE

 

Accounts receivable as of September 30, 2011 and December 31, 2010 consisted of the following.

 

   September 30,  December 31,
   2011  2010
           
           
Accounts receivable  $5,209,230   $1,911,065 
Less: Allowance for doubtful accounts   (149,158)   (143,097)
   $5,060,072   $1,767,968