Annual report pursuant to Section 13 and 15(d)

4. ACCOUNTS RECEIVABLE (Details)

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4. ACCOUNTS RECEIVABLE (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Accounts Receivable Details    
Accounts receivable $ 3,096,914 $ 1,421,411
Allowance for doubtful accounts (70,807) (115,400)
Accounts receivable, net $ 3,026,107 $ 1,306,011