Accounts Receivable and Significant Concentrations (Tables)

3 Months Ended

Mar. 31, 2019

Schedule of accounts receivable

	MARCH 31,		DECEMBER 31,
	2019		2018
	(Unaudited)
Government (1)	$	8,689,290	$	7,332,338
Commercial (2)		2,643,884		3,863,710
Gross accounts receivable		11,333,174		11,196,048
Less: allowances for doubtful
accounts (3)		112,754		106,733
Accounts receivable, net	$	11,220,420	$	11,089,315

Accounts Receivable [Member]

Schedules of concentration of risk

	MARCH 31,		DECEMBER 31,
	2019		2018
	As a % of		As a % of
Customer Name	Receivables		Receivables
	(Unaudited)
U.S. Customs Border Patrol		12%		14%
U.S. Department of Homeland Security HQ		11%		--
U.S. Coast Guard		13%		13%
Iron Bow Technologies		--		15%

Sales Revenue, Net [Member]

Schedules of concentration of risk

	THREE MONTHS ENDED
	MARCH 31,
	2019		2018
	As a % of		As a % of
Customer Name	Revenues		Revenues
	(Unaudited)
U.S. Immigration and Customs Enforcement		15%		16%
U.S. Customs Border Patrol		14%		--
U.S. Federal Air Marshall Service		--		11%