Purchased Asset and Investments (Tables)

12 Months Ended

Dec. 31, 2014

Equity Method Investments and Joint Ventures [Abstract]

Schedule of Interest in RadQual, LLC

	2014		2013
Current assets	$	499,000	$	525,000
Noncurrent assets		59,000		109,000
Current liabilities		499,000		399,000
Noncurrent liabilities		-		190,000
Revenue		3,837,000		3,980,000
Gross profit		921,000		841,000
Net income	$	386,000	$	259,000