INCOME TAXES (Schedule of Valuation Allowance) (Details) - Valuation Allowance Of Deferred Tax Assets [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	$ 0	$ 0	$ 800
Additions charged to expense	817	0	0
Deductions	0	0	(800)
Balance at end of year	$ 817	$ 0	$ 0