Note 16 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

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

	Year Ended December 31,
(in thousands)	2021			2020		2019
Domestic	$	42,449		$	58,551	$	74,841
Foreign		(2,265	)		4,394		6,352
Total	$	40,184		$	62,945	$	81,193

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

	Year Ended December 31,
(in thousands)	2021			2020			2019
Current:
Federal	$	5,552		$	2,128		$	6,991
State		975			1,136			2,882
Foreign		(64	)		1,241			1,544
Deferred
Federal		(377	)		6,904			5,121
State		(814	)		(431	)		269
Foreign		(1,181	)		210			(809	)
Valuation Allowance		2,721			890			1,540
Total	$	6,812		$	12,078		$	17,538

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

	Year Ended December 31,
	2021			2020			2019
Federal tax statutory rate		21.0	%		21.0	%		21.0	%
State tax (net of federal benefit)		2.1			2.1			2.1
Share based compensation		(2.3	)		(1.3	)		(0.5	)
Valuation allowance against deferred tax assets		8.9			2.0			1.4
Contingent consideration reduction		(7.0	)		-			-
Research and development credit		(4.0	)		(3.7	)		(2.8	)
Foreign rate differential		(2.2	)		(0.8	)		(0.3	)
Tax reserves		(1.0	)		1.4			1.1
Provision to return difference		(0.7	)		(1.4	)		-
Miscellaneous		2.2			(0.1	)		(0.4	)
Total		17.0	%		19.2	%		21.6	%

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

	December 31,
(in thousands)	2021			2020
Deferred tax assets:
Accrued expenses	$	2,511		$	2,155
Leases		1,830			3,598
Warrants and stock options		4,271			3,356
Intangible assets		-			1,693
Inventories		205			172
Research and development credit		2,126			1,661
Other assets		1,111			129
Net operating loss		14,046			6,647
Less valuation allowance		(13,999	)		(9,138	)
Total deferred tax assets		12,101			10,273
Deferred tax liabilities:
Depreciation		(31,897	)		(32,671	)
Goodwill		(9,872	)		(7,858	)
Intangible assets		(4,394	)		-
Leases		(1,830	)		(3,598	)
Total deferred tax liabilities		(47,993	)		(44,127	)
Net deferred tax liability	$	(35,892	)	$	(33,854	)

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

	December 31,
	2021			2020
Balance at beginning of period	$	4,830		$	4,598
Additions for tax positions of current year		491			324
Additions for tax positions of prior years		781			475
Decrease related to expiration of statutes of limitations		(1,738	)		(567	)
Balance at period end	$	4,364		$	4,830