INTERIM CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss):	$ 2,543	$ 5,850	$ (1,729)	$ 13,865
Available-for-sale securities:
Changes in unrealized gains (losses)	16	96	(863)	322
Reclassification adjustments for (gains) losses included in net income	32	(7)	30	33
Net change	48	89	(833)	355
Cash flow hedges:
Changes in unrealized gains (losses)	21	(2)	(259)	180
Reclassification adjustments for (gains) losses included in net income	63	2	259	(186)
Net change	84			(6)
Other comprehensive income (loss) before tax	132	89	(833)	349
Income tax expense (benefit) related to components of other comprehensive income (loss)	(1)	12	(135)	53
Other comprehensive income (loss), net of taxes	133	77	(698)	296
Comprehensive income (loss)	$ 2,676	$ 5,927	$ (2,427)	$ 14,161

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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