INVESTMENTS (Details) $ in Thousands		3 Months Ended	6 Months Ended		12 Months Ended
	May 13, 2016 USD ($) item	Jun. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Fair value of Investments
Opening balance			$ 1,032	$ 1,409	$ 1,409
Additions during the period			398	1,114	448
Disposals during the period			(470)
Other Comprehensive Income (Loss) (pre -tax)			2,873		(825)
Statement of Operations (Loss) Income			859
Fair Value end of the period		$ 4,692	4,692		1,032
Sale of marketable securities			500
Gain on available-for-sale securities			100
Cost of purchase of marketable equity securities			1,800		1,900
Unrealized gain on available-for-sale securities		1,600	1,500
Golden Predator Mining Corporation
Fair value of Investments
Number of units acquired | item	3,125,000
Common shares per unit | item	1
Warrants per unit | item	1
Total cost of private placement transaction	$ 400
Common Stock | Golden Predator Mining Corporation
Fair value of Investments
Total cost of private placement transaction	200
Warrants | Golden Predator Mining Corporation
Fair value of Investments
Total cost of private placement transaction	$ 200
Marketable equity securities
Fair value of Investments
Opening balance			1,032	$ 1,409	1,409
Additions during the period			233		448
Disposals during the period			(470)
Other Comprehensive Income (Loss) (pre -tax)			2,873		(825)
Statement of Operations (Loss) Income			(860)
Fair Value end of the period		2,808	2,808		$ 1,032
Warrants
Fair value of Investments
Additions during the period			165
Statement of Operations (Loss) Income			1,719
Fair Value end of the period		$ 1,884	$ 1,884