INVESTMENTS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Fair value Available for Sale
Opening balance			$ 8,543	$ 1,032	$ 1,032
Additions during the period				2,518	4,419
Disposals during the period			(2,155)	(470)	(470)
Other Comprehensive Income (Loss) (pre -tax)			2,217		3,043
Statement of Operations (Loss) Income			620		519
Fair Value end of the period	$ 9,225		9,225		8,543
Cost of purchase of marketable equity securities			3,300		4,900
Unrealized (loss) gain on derivatives (note 2)	(933)	$ (197)	136	1,522
Gain on available-for-sale securities, pre-tax	800		800	100
Other-than-temporary impairment on marketable equity securities (note 2)	(356)		(356)	(882)
Sale of marketable securities	2,200		2,200
Other-than-temporary impairment on marketable equity securities	356		356	882
Other comprehensive loss, net of tax		$ 300	1,582	1,800
Marketable equity securities
Fair value Available for Sale
Opening balance			6,749	$ 1,032	1,032
Additions during the period					4,004
Disposals during the period			(2,155)		(470)
Other Comprehensive Income (Loss) (pre -tax)			2,217		3,043
Statement of Operations (Loss) Income			484		(860)
Fair Value end of the period	7,295		7,295		6,749
Warrants
Fair value Available for Sale
Opening balance			1,794
Additions during the period					415
Statement of Operations (Loss) Income			136		1,379
Fair Value end of the period	$ 1,930		$ 1,930		$ 1,794