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Note 9 - Derivatives and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Schedule of Derivative Instruments [Table Text Block]

		As at December 31,
		2017				2018
Derivative liabilities :
Derivatives designated as cash flow hedging instruments:
Foreign exchange option contracts		$	—			$	14
Foreign exchange forward contracts			—				63
Total		$	—			$	77

Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]

		Year ended December 31,
		2016				2017				2018
Derivatives designated as cash flow hedging instruments:
Foreign exchange option contracts		$	67			$	90			$	(146	)
Foreign exchange forward contracts			91				93				(285	)
		$	158			$	183			$	(431	)

Schedule of Net Investment Hedges in Accumulated Other Comprehensive Income (Loss) [Table Text Block]

		Year ended December 31,
		2016				2017				2018
Derivatives designated as cash flow hedging instruments:
Foreign exchange option contracts		$	(67	)		$	(90	)		$	132
Foreign exchange forward contracts			(94	)			(99	)			222
		$	(161	)		$	(189	)		$	354

X

- Definition

Tabular disclosure of the effective portion of the gains and losses on derivative instruments designated (and non-derivative instruments) designated and qualifying in cash flow hedges and net investment hedges that was recognized in other comprehensive income (loss) during the current period.

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