FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Total [Member]
Financial assets and liabilities measured at fair value
Cash and cash equivalents	$ 5,131	$ 8,592
Marketable securities	5,539	6,406
Derivative assets		29
Derivative liabilities	(2)
Derivative liabilities - Phantom option	(26)	(49)
Financial assets and liabilitied measured at fair value	10,642	14,978
Level 1 [Member]
Financial assets and liabilities measured at fair value
Cash and cash equivalents	5,131	8,592
Marketable securities	$ 5,539	$ 6,406
Derivative assets
Derivative liabilities
Derivative liabilities - Phantom option
Financial assets and liabilitied measured at fair value	$ 10,670	$ 14,998
Level 2 [Member]
Financial assets and liabilities measured at fair value
Cash and cash equivalents
Marketable securities
Derivative assets		$ 29
Derivative liabilities	$ (2)
Derivative liabilities - Phantom option	(26)	(49)
Financial assets and liabilitied measured at fair value	$ (28)	$ (20)
Level 3 [Member]
Financial assets and liabilities measured at fair value
Cash and cash equivalents
Marketable securities
Derivative assets
Derivative liabilities
Derivative liabilities - Phantom option
Financial assets and liabilitied measured at fair value