Accounts Receivable and Significant Concentrations (Tables)

12 Months Ended

Dec. 31, 2018

Receivables [Abstract]

Schedule of accounts receivable

	DECEMBER 31,
	2018		2017
Government (1)	$	7,332,338	$	6,055,397
Commercial (2)		3,863,710		2,183,246
Gross accounts receivable		11,196,048		8,238,643
Less: allowances for doubtful accounts (3)		106,733		107,618
Accounts receivable, net	$	11,089,315	$	8,131,025

Schedule of concentration of risk

	DECEMBER 31,
	2018			2017
	As a % of			As a % of
Customer Name	Receivables			Receivables
U.S. Customs Border Patrol		14	%		12	%
U.S. Immigration and Customs Enforcement		--			13	%
U.S. Federal Air Marshall Service		3	%		10	%
Iron Bow Technologies		15	%		--

	YEARS ENDED
	DECEMBER 31,
	2018			2017
	As a % of			As a % of
Customer Name	Revenues			Revenues
U.S. Immigration and Customs Enforcement		16	%		17	%
U.S. Customs Border Patrol		11	%		11	%

6.        Unbilled Accounts Receivable and Significant Concentrations