Note 7 - Income Tax Expense (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

	Years Ended December 31,
	2019			2018			2017
Current:
Federal	$	3,049		$	3,613		$	2,846
Tax Cut and Jobs Act		-			-			265
State and local		1,074			643			647
Foreign		502			789			338
		4,625			5,045			4,096
Long-Term:
Tax Cut and Jobs Act		-			-			1,336
Deferred Taxes:
Deferred tax (benefit) provision		(1,405	)		(625	)		1,899
Tax Cut and Jobs Act re-measurement		-			-			2,429
		(1,405	)		(625	)		4,328
Income tax expense	$	3,220		$	4,420		$	9,760

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

	December 31,
	2019			2018
Deferred income tax assets:
Pension accruals	$	2,588		$	2,729
Operating reserves and other accruals		2,540			1,984
Tax credits		923			748
Valuation allowance on tax credits		(923	)		(748	)
Deferred income tax liabilities:
Book carrying value in excess of tax basis of property		(1,544	)		(1,495	)
Book carrying value in excess of tax basis of intangibles		(7,024	)		(6,906	)
Tax effect of revenue recognition standard ASC 606		(1,771	)		(2,657	)
Deferred expenses		(1,831	)		(2,130	)
Net deferred income tax liability	$	(7,042	)	$	(8,475	)

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

	Years Ended December 31,
	2019			2018			2017
Statutory Federal income tax rate		21.0	%		21.0	%		34.0	%
State and local income taxes, net of Federal income tax benefit		4.8	%		2.0	%		1.5	%
Rate impacts due to foreign operations		(3.9	%)		(2.7	%)		(5.1	%)
Changes in uncertain tax positions		1.7	%		0.4	%		-
Compensation related		(0.2	%)		1.4	%		(6.1	%)
R&D tax credits		(0.9	%)		(0.4	%)		(0.5	%)
Other		(1.4	%)		(1.0	%)		(0.1	%)
Impact of the Tax Act		-			-			15.7	%
Effective income tax rate		21.1	%		20.7	%		39.4	%

Summary of Income Tax Contingencies [Table Text Block]

	December 31,
	2019			2018
Balance at the beginning of year	$	477		$	400
Additions based on tax positions related to the current year		128			56
Additions for tax positions of prior years		173			85
Reductions due to lapse of statute of limitations		(97	)		(64	)
Balance at the end of year	$	681		$	477