Note 9 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

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

	Years Ended December 31,
	2016		2015			2014
Current
Federal	$	3,120	$	3,131		$	2,638
State		651		580			336
		3,771		3,711			2,974
Deferred
Federal		546		508			1,262
State		30		(71	)		(30	)
		576		437			1,232
Total income tax provision	$	4,347	$	4,148		$	4,206

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

	December 31,
	2016			2015
Deferred tax assets:
Reserves	$	531		$	532
Inventory capitalization		427			407
Compensation programs		578			501
Retirement liability		19			27
Equity-based compensation		257			290
Net operating loss carryforwards		40			141
Deferred rent		7			10
Intangible assets		340			264
Total deferred tax assets		2,199			2,172
Deferred tax liabilities:
Excess of book over tax basis of fixed assets		(4,767	)		(4,186	)
Goodwill		(891	)		(869	)
Total deferred tax liabilities		(5,658	)		(5,055	)
Net long-term deferred tax liabilities	$	(3,459	)	$	(2,883	)

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

	Years Ended December 31,
	2016			2015			2014
Computed “expected” tax rate		34.0	%		34.0	%		34.0	%
Increase (decrease) in income taxes resulting from:
State taxes, net of federal tax benefit		3.7			2.3			1.1
Meals and entertainment		0.2			0.3			0.3
R&D credits		(0.6	)		(0.8	)		(0.7	)
Domestic production deduction		(2.5	)		(2.5	)		(1.4	)
Non-deductible ISO stock option expense		0.3			0.4			0.4
Unrecognized tax benefits		(0.1	)		-			1.3
Other		0.3			1.6			0.8
Effective tax rate		35.3	%		35.3	%		35.8	%

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

	December 31,
	2016			2015
Gross UTB balance at beginning of fiscal year	$	162		$	230
Reductions for tax positions of prior years		(12	)		(68	)
Gross UTB balance at end of fiscal year	$	150		$	162