Accounts Receivable and Significant Concentrations (Tables)

3 Months Ended

Mar. 31, 2022

Accounts Receivable and Significant Concentrations

Schedule of accounts receivable

	MARCH 31,		DECEMBER 31,
	2022		2021
	(Unaudited)
Government (1)	$	10,885,429	$	11,010,794
Commercial (2)		2,268,317		1,588,778
Gross accounts receivable		13,153,746		12,599,572
Less: allowances for doubtful accounts (3)		58,460		62,988
Accounts receivable, net	$	13,095,286	$	12,536,584

Schedule of concentration of risk

	THREE MONTHS ENDED
	MARCH 31,
Customer Type	2022			2021
	(Unaudited)
U.S. Federal Government (1)		77.7	%		82.0	%
U.S. State & Local and Foreign Governments		0.7	%		0.4	%
Commercial		21.6	%		17.6	%