Accounts Receivable and Significant Concentrations (Tables)

12 Months Ended

Dec. 31, 2021

Accounts Receivable and Significant Concentrations

Schedule of accounts receivable

	DECEMBER 31,		DECEMBER 31,
	2021		2020
U.S. Federal, State and Local Government (1)	$	11,010,794	$	34,097,906
Commercial (2)		1,588,778		1,898,924
Gross accounts receivable		12,599,572		35,996,830
Less: allowances for doubtful
accounts (3)		62,988		114,169
Accounts receivable, net	$	12,536,584	$	35,882,661

Schedule of concentration of risk

	YEARS ENDED
	DECEMBER 31,
Customer Type	2021	2020
U.S. Federal Government (1)	83.7%	91.9%
U.S. State & Local and Foreign Governments	0.4%	0.1%
Commercial	15.9%	7.9%