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Note 12 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

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

		Year ended December 31,
		2017				2016				2015
Domestic		$	(12,630	)		$	6,332			$	13,295
Foreign			(3,263	)			(2,454	)			(2,744	)
Total		$	(15,893	)		$	3,878			$	10,551

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

		Year ended December 31,
		2017				2016				201 5
Current:
Federal		$	577			$	(593	)		$	(3,386	)
State			(66	)			63				(344	)
Foreign			(682	)			(37	)			-
Total current			(171	)			(567	)			(3,730	)
Deferred:
Federal			1,497				(633	)			(220	)
State			480				(17	)			(10	)
Foreign			748				115				470
Total			2,725				(535	)			240
Change in valuation allowance			(833	)			(332	)			(285	)
Total deferred			1,892				(867	)			(45	)
Benefit/(provision) for income taxes		$	1,721			$	(1,434	)		$	(3,775	)

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

		Year ended December 31,
		2017				2016				2015
Tax benefit (provision) at federal statutory rate		$	5,403			$	(1,318	)		$	(3,587	)
State income tax benefit (provision), net of federal benefit			439				(148	)			(408	)
Research and development tax credits			411				423				456
Subpart F inclusion			(370	)			-				-
Foreign earnings or losses taxed at different rates			(540	)			(292	)			(231	)
Tax rate change			(3,161	)			-				-
Other			372				233				280
Change in valuation allowance			(833	)			(332	)			(285	)
Tax benefit (provision)		$	1,721			$	(1,434	)		$	(3,775	)

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

		2017				2016
Deferred revenue		$	738			$	845
Basis difference in intangible assets			3,403				(56	)
Inventory reserve			2,089				2,650
Net operating loss carryforwards			1,627				1,391
Research and development tax credits			163				88
Accrued expenses			75				92
Stock-based compensation			327				584
Allowance for sales returns and doubtful accounts			119				70
Difference in property and equipment basis			(212	)			(350	)
Other			438				743
Total net deferred income tax asset			8,767				6,057
Less: Valuation allowance			(2,236	)			(1,403	)
Net deferred income tax asset (liability)		$	6,531			$	4,654

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

		Year ended December 31,
		2017				2016
Balance - beginning of year		$	1,189			$	1,126
Additions based on tax positions related to the current year			67				16
Additions for tax positions of prior years			520				47
Reductions for tax positions of prior years			-				-
Settlements			(165	)			-
Lapse in statutes of limitations			(959	)			-
Uncertain tax positions, ending balance		$	652			$	1,189

X

- Definition

Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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