Note 17 - Fair Value of Financial Instruments and Non-Financial Assets and Liabilities (Details) - Changes in Fair Value of Continget Consideration (USD $) In Thousands, unless otherwise specified		12 Months Ended
	Dec. 02, 2013	Dec. 31, 2014 Dillion [Member]	Dec. 31, 2014 Changes Measurement [Member] Dillion [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration as of December 29, 2013	$ 2,500	$ 2,500
Change in fair value			98
Payment		(11)
Contingent consideration as of March 30, 2014	$ 2,500	$ 2,587