Note 12 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

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

	Years Ended December 31,
	2013		2012
Domestic	$	3,245	$	2,580
Foreign		763		473
	$	4,008	$	3,053

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

	Years Ended December 31,
	2013			2012
Current
Domestic -- Federal	$	515		$	362
Domestic -- state		74			62
Foreign		35			30
		624			454
Deferred
Domestic -- Federal		218			396
Domestic -- state		212			(126	)
Foreign		(123	)		173
		307			443
Income tax expense	$	931		$	897

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

	December 31,
	2013			2012
Deferred tax assets:
Net operating loss ("NOL") (state and foreign)	$	829		$	1,182
Depreciation of property and equipment		646			793
Tax credit carryforwards (foreign, research and AMT)		269			440
Inventories		180			177
Accrued vacation pay and stock-based compensation		169			182
Intangibles		162			86
Allowance for doubtful accounts		56			56
Acquisition costs		37			39
Accrued warranty		11			22
Other		26			68
		2,385			3,045
Valuation allowance		(287	)		(573	)
Deferred tax assets		2,098			2,472
Deferred tax liabilities:
Net intangible assets		(260	)		(307	)
Unremitted earnings of foreign subsidiaries		(107	)		(127	)
Deferred tax liabilities		(367	)		(434	)
Net deferred tax asset	$	1,731		$	2,038

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

		Years Ended December 31,
		2013			2012
Expected income tax provision at U.S. statutory rate		$	1,363		$	1,038
Increase (decrease) in tax from:
	Current year tax credits (foreign and research)		(417	)		(523	)
	Foreign income tax rate differences		(80	)		(36	)
	Changes in valuation allowance		(286	)		89
	Deemed dividend from foreign subsidiaries		135			212
	Domestic tax expense, net of Federal benefit		127			72
	Nondeductible expenses		10			20
	NOL carryforwards utilized		200			103
	Other		(121	)		(78	)
Income tax expense		$	931		$	897