STOCK-BASED COMPENSATION Operations (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation		$ 4,280	$ 3,383	$ 2,311
Discontinued Operations, Held-for-sale [Member] | Selling, General and Administrative Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation charged	[1]	$ 100	$ 100	$ 100

[1] (1) All stock-based compensation expense from discontinued operations relate to employees of Croatia and Slovenia.