INTANGIBLE ASSETS (Details) - USD ($)	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Purchased technology	$ 1,447,000		$ 1,401,000
Purchased technology, net	32,000		67,000
Goodwill	185,000		185,000
Amortization of intangible assets	27,000	$ 81,000
Brand name and trademark
Indefinite-lived Intangible Assets [Line Items]
Brand name and trademark	0		1,510,000
Purchased technology and license rights
Finite-Lived Intangible Assets [Line Items]
Less: accumulated amortization	(1,415,000)		(1,334,000)
Purchased technology, net	$ 32,000		179,000
Purchased technology and license rights | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible asset, useful life (in years)	5 years
Purchased technology and license rights | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible asset, useful life (in years)	17 years
Purchased technology and license rights | Core
Finite-Lived Intangible Assets [Line Items]
Purchased technology	$ 0		$ 112,000
Purchased technology and license rights | Core | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible asset, useful life (in years)	5 years
Purchased technology and license rights | Core | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible asset, useful life (in years)	17 years