INVESTMENTS IN MARKETABLE SECURITIES (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Marketable Securities Purchases Of Company Details [Line Items]
Investments In Marketable Securities	$ 6,300,000		$ 6,200,000
Marketable Securities Gain	66,000	$ 143,000
Marketable Securities Loss	84,000	96,000
Marketable Securities, Realized Gain (Loss), Total	$ (18,000)	$ (47,000)