Note 15 - Taxation - Deferred Tax Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Tax effect of net operating losses carried forward	$ 9,601	$ 9,243
Bad debts provision	499	1,188
Valuation allowance	(9,551)	(9,875)
Deferred tax assets, net	$ 549	$ 556

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the allowance for doubtful accounts.

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