Note 4 - Accounts Receivable

9 Months Ended

Sep. 30, 2021

Notes to Financial Statements

Accounts and Nontrade Receivable [Text Block]

4. Accounts Receivable

Accounts receivable at September 30, 2021 and December 31, 2020, consist of the following:

	September 30, 2021		December 31, 2020
Billed federal government	$	2,832,906	$	1,425,217
Unbilled receivables		41,750		17,014
Accounts receivable	$	2,874,656	$	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.