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2. ACCOUNTS RECEIVABLE (Tables)
12 Months Ended
Dec. 31, 2012
Accounts Receivable Tables  
Changes in the allowance for doubtful accounts

Changes in the allowance for doubtful accounts are as follows:

 

    Year ended December 31,  
    2012     2011  
             
Balance at Beginning of Period   $ 20,825     $ 11,931  
Charged to costs and expenses     16,210       8,894  
Charged to other accounts     -       -  
Write-offs, net of recoveries     (24,127 )     -  
                 
Balance at End of Period   $ 12,908     $ 20,825