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Note 4 - Receivables
12 Months Ended
Dec. 31, 2021
Notes to Financial Statements  
Accounts and Nontrade Receivable [Text Block]

Note 4.

Receivables

 

Accounts receivable as of December 31, 2021 and 2020, consist of the following:

 

  December 31, 
  2021  2020 
Billed federal government $1,594,473  $1,425,217 
Unbilled receivables  70,389   17,014 
Accounts receivable $1,664,862  $1,442,231 

 

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 include short-term contract assets where billing cycles differ from calendar months, or a monthly fixed billing amount does not reflect the revenue earned in a given month. The accounts receivable balance as of December 31, 2019, was $668,712.