Annual report pursuant to Section 13 and 15(d)

2. Receivables

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2. Receivables
 12 Months Ended
Dec. 31, 2015
Receivables  
2. Receivables

Accounts receivable at December 31, 2015 and 2014, consist of the following:

 

    2015     2014  
Billed-federal government   $ 754,540     $ 758,818  
Billed-commercial and other     180,474       212,324  
Total billed     935,014       971,142  
Unbilled     363,015       357  
Allowance for doubtful accounts     -       (878 )
Accounts receivable, net   $ 1,298,029     $ 970,621  

 

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.