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Note 16 - 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,
(in thousands)		2018				2017				2016
Domestic		$	81,893			$	69,929			$	59,232
Foreign			9,762				4,506				4,989
Total		$	91,655			$	74,435			$	64,221

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

		Year Ended December 31,
(in thousands)		2018				2017				2016
Current:
Federal		$	(782	)		$	17,808			$	15,119
State			2,078				1,367				1,091
Foreign			1,810				2,215				2,439
Deferred
Federal			11,325				865				2,758
State			538				193				75
Foreign			(430	)			(1,918	)			(1,960	)
Valuation Allowance			528				2,127				1,992
Total		$	15,067			$	22,657			$	21,514

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

		Year Ended December 31,
		2018				2017				2016
Federal tax statutory rate			21.0	%			35.0	%			35.0	%
State tax (net of federal benefit)			2.0				1.7				0.6
Share based compensation			(2.8	)			(0.8	)			-
Valuation allowance against deferred tax assets			0.7				2.9				3.1
Research and development credit			(2.5	)			(2.2	)			(2.2	)
Foreign rate differential			(0.1	)			(1.9	)			(2.8	)
Tax reserves			(0.1	)			0.9				1.4
Domestic manufacturing deduction			-				(2.5	)			(1.8	)
Other			(0.5	)			(0.2	)			0.1
Transition tax			(0.8	)			3.2				-
Revaluation of deferred tax liability			(0.5	)			(5.7	)			0.0
Total			16.4	%			30.4	%			33.4	%

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

		December 31,
(in thousands)		2018				2017
Deferred tax assets:
Accrued expenses		$	931			$	756
Stock options, restricted stock and other			2,908				2,309
Intangible assets			748				429
Inventories			154				220
Other assets			666				625
Net operating loss			6,605				6,374
Less valuation allowance			(6,900	)			(6,633	)
Total deferred tax assets			5,112				4,080
Deferred tax liabilities:
Depreciation			(21,788	)			(9,528	)
Goodwill			(3,486	)			(1,518	)
Total deferred tax liabilities			(25,274	)			(11,046	)
Net deferred tax liability		$	(20,162	)		$	(6,966	)

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

		December 31,
		2018				2017
Balance at beginning of period		$	4,233			$	3,796
Additions for tax positions of current year			593				831
Additions for tax positions of prior years			309				48
Decrease related to expiration of statutes of limitations			(1,039	)			(442	)
Balance at period end		$	4,096			$	4,233

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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