Investment (Tables)

6 Months Ended

Jun. 30, 2017

Equity Method Investments and Joint Ventures [Abstract]

Schedule of Equity Method Investments

	June 30,		December 31,
RadQual LLC	2017		2016
Current assets	$	598,000	$	501,000
Noncurrent assets		12,000		12,000
Current liabilities		397,000		293,000
Noncurrent liabilities		-		-

	For the three-months ended June 30,				For the six-months ended June 30,
	2017		2016		2017		2016
Revenue	$	797,000	$	819,000	$	1,657,000	$	1,622,000
Gross profit		209,000		231,000		472,000		458,000
Net income		66,000		101,000		185,000		185,000