SHARE-BASED COMPENSATION (Schedule of Share-Based Compensation Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based issuances	$ 1,002	$ 1,283		$ 7,190	$ 2,806
Ordinary share options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based issuances	635	997	$ 4,108
Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based issuances	$ 367	$ 286	$ 1,160