Note 12 - Repurchase of Common Stock (Details Textual) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Apr. 03, 2016	Apr. 27, 2016	Dec. 28, 2014
Subsequent Event [Member]
Stock Repurchase Program, Authorized Amount		$ 50
Stock Repurchase Program, Number of Shares Authorized to be Repurchased			500,000
Treasury Stock, Shares, Acquired	4,300
Treasury Stock Acquired, Average Cost Per Share	$ 17.31