INTANGIBLE ASSETS AND GOODWILL (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Held-to-maturity Securities	$ 4,700,000
Write-off of abandoned patents	19,000	$ 0
Amortization of intangible assets	$ 89,000	$ 27,000
STI | Patents | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	1 year
STI | Patents | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	12 years
STI | Domain Name
Finite-Lived Intangible Assets [Line Items]
Useful life	10 years
GVR Trade S.A. | Patents | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	3 years
GVR Trade S.A. | Patents | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	5 years