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Note 10 - Other Expenses - Components of Other Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement Line Items [Line Items]
Impairment provision - 2016 royalty rebate (note 17)	$ 181	$ 0	$ 0
Other	14	55	0
Total	$ 195	$ 55

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- Definition

The amount of impairment loss recognised in profit or loss for trade receivables. [Refer: Impairment loss recognised in profit or loss; Trade receivables]

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The amount of miscellaneous other operating expenses. [Refer: Other operating income (expense)]

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The amount of expenses that the entity does not separately disclose in the same statement or note when the entity uses the 'nature of expense' form for its analysis of expenses. [Refer: Expenses, by nature]

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