Note 6 - Acquisitions (Details) - Contingent Consideration (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration balance	$ 1,022
Liability reduced in current year	(92)	(135)
Contingent consideration balance	930	1,022
Short Term [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration balance	309
Liability reduced in current year	(92)
Moved from long term to short term	306
Contingent consideration balance	523
Long Term [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration balance	713
Moved from long term to short term	(306)
Contingent consideration balance	$ 407