Note 8 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

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

	Year ended December 31,
	2018		2017		2016
	(in thousands)
United States	$	22,256	$	17,778	$	12,600
Foreign		6,188		3,328		3,642
Total	$	28,444	$	21,106	$	16,242

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

	Year ended December 31,
	2018			2017			2016
				(in thousands)
Current:
Federal	$	4,262		$	2,451		$	4,409
State		673			292			393
Foreign		2,718			886			710
		7,653			3,629			5,512
Deferred:
Federal		(1,512	)		(268	)		197
State		(145	)		390			166
Foreign		(495	)		178			(223	)
		(2,152	)		300			140
Provision for income taxes	$	5,501		$	3,929		$	5,652

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

	2018		2017			2016
	(in thousands)
Unrecognized tax benefits at the beginning of year	$	525	$	390		$	82
Additions for tax positions of current year		73		83			95
Additions for tax positions of prior years		113		57			213
Reductions for settlements with taxing authorities.		-		-			-
Reductions for lapses of the applicable statutes of limitations		-		(5	)		-
Unrecognized tax benefits at the end of the year	$	711	$	525		$	390

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

	As of December 31,
	2018			2017
	(in thousands)
Deferred tax assets:
Inventory	$	976		$	569
Net operating loss carryforwards		1,421			1,898
Tax credit carryforwards		828			760
Capital loss carryforwards		279			1,168
Reserves and accruals		802			629
Intangible assets		2,737			1,138
Stock options		373			322
Other		91			65
Total deferred tax assets		7,507			6,549
Deferred tax liabilities:
Property and equipment		(1,416	)		(1,203	)
Goodwill		(3,023	)		(2,932	)
Foreign branch deferred offset		(1,032	)		(1,177	)
Other		(50	)		(44	)
Total deferred tax liabilities		(5,521	)		(5,356	)
Net deferred tax assets before valuation allowance		1,986			1,193
Valuation allowance		(1,255	)		(1,991	)
Net deferred tax liabiltity	$	731		$	(798	)
Deferred tax classification
Long-term deferred tax asset	$	1,215		$	1,378
Long-term deferred tax liability		(484	)		(2,176	)
Net long-term deferred tax liability	$	731		$	(798	)

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

	2018			2017			2016
Federal statutory rate		21.0	%		35.0	%		35.0	%
State tax, net of federal benefit		1.4	%		1.7	%		1.3	%
Effect of foreign taxes		3.8	%		(0.6%	)		(1.9%	)
Federal tax on foreign income		1.4	%		1.7	%		1.6	%
Valuation allowance		(3.2%	)		0.1	%		(2.6%	)
Foreign deferred tax liability offset		(0.3%	)		(0.2%	)		1.5	%
Manufacturing deduction		0.0	%		(1.5%	)		(2.5%	)
Research & development tax credits		(0.7%	)		(0.6%	)		(0.7%	)
Stock options		(3.3%	)		(15.8%	)		(0.7%	)
Uncertain tax positions		0.8	%		0.6	%		2.0	%
Other permanent differences		(0.7%	)		1.0	%		1.2	%
Change in tax laws		0.0	%		2.9	%		0.0	%
Deferred tax remeasurement		0.0	%		(5.0%	)		0.0	%
Other		(0.9%	)		(0.7%	)		0.5	%
Effective tax rate		19.3	%		18.6	%		34.8	%

Summary of Income Tax Examinations [Table Text Block]

United States	2015 and forward
Foreign	2011 and forward