Quarterly report pursuant to Section 13 or 15(d)

PATENTS (Details)

v3.8.0.1
PATENTS (Details) - USD ($)
Mar. 31, 2018
Dec. 31, 2017
Patents, net $ 2,126,000 $ 2,169,000
Patents [Member]    
Gross carrying amount - patents 7,598,000 7,571,000
Accumulated amortization - patents (5,472,000) (5,402,000)
Patents, net $ 2,126,000 $ 2,169,000