Note 12 - Income Tax (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

	Years Ended December 31
	2018		2017			2016
Cayman Islands	$	277	$	(7,371	)	$	(4,156	)
Foreign		2,952		2,236			2,228
Total	$	3,229	$	(5,135	)	$	(1,928	)

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Years Ended December 31
	2018			2017		2016
Current	$	1,296		$	970	$	2,289
Deferred		(155	)		40		(1,231	)
Total	$	1,141		$	1,010	$	1,058

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Years Ended December 31
	2018			2017			2016
Tax expense at statutory rate	$	-		$	-		$	-
Increase (decrease) in tax resulting from:
Differences between Cayman and foreign tax rates		401			414			449
Changes in deferred income tax assets and liabilities		(247	)		(546	)		(1,249	)
Adjustments to prior years’ taxes		60			12			33
Changes in valuation allowances for deferred income tax assets		92			586			18
Withholding taxes on repatriation of subsidiary profits		521			298			1,669
Alternative Minimum Tax on EMC stock sales		105			-			-
Other		209			246			138
Total	$	1,141		$	1,010		$	1,058

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	December 31
	2018			2017
Deferred income tax assets
Research and development credits	$	6,756		$	6,637
Net operating loss carryforwards		44			82
Depreciation and amortization		149			169
Accrued vacation and other expenses		29			68
		6,978			6,956
Valuation allowance		(6,928	)		(6,836	)
Total net deferred income tax assets	$	50		$	120
Deferred income tax liabilities
Withholding taxes on repatriation of subsidiary profits	$	681		$	906