Note 2 - Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2017

Notes Tables

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
At June 30, 2017
Technology and patents	$	1,058	$	(561	)	$	497
Customer lists		1,869		(796	)		1,073
Total intangible assets	$	2,927	$	(1,357	)	$	1,570
At December 30, 2016
Technology and patents	$	1,058	$	(498	)	$	560
Customer lists		1,869		(715	)		1,154
Total intangible assets	$	2,927	$	(1,213	)	$	1,714

Finite-lived Intangible Assets Amortization Expense [Table Text Block]

	Three Months Ended				Six Months Ended
	June 30, 2017		July 1, 2016		June 30, 2017		July 1, 2016
Cost of sales	$	31	$	27	$	63	$	55
Selling, general and administrative expenses		41		40		81		80
Total intangible asset amortization expense	$	72	$	67	$	144	$	135

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

	Estimated Amortization Expense
Remainder of 2017	$	142
2018		298
2019		293
2020		209
2021		194
Thereafter		434
Total estimated amortization expense	$	1,570