Annual report pursuant to Section 13 and 15(d)

2. Receivables

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2. Receivables
 12 Months Ended
Dec. 31, 2012
Receivables  
2. Receivables

Accounts receivable at December 31, 2012 and 2011, consist of the following:

 

    2012     2011  
                 
Billed-federal government   $ 664,533     $ 2,961,279  
Billed-commercial and other     73,892       70,100  
Total billed     738,425       3,031,379  
Unbilled     -       -  
Allowance for doubtful accounts     (381 )     (141,721 )
Accounts receivable, net   $ 738,044     $ 2,889,658  

 

Billed receivables from the federal government include amounts due from both prime contracts and subcontracts where the federal government is the end customer. Unbilled receivables are for services provided through the balance sheet date that are expected to be billed and collected within one year.