Note 13 - Shareholders' Equity - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		12 Months Ended
		Jan. 02, 2016	Jan. 02, 2016		Dec. 27, 2014		Dec. 28, 2013
Balance at December 28, 2013	[1]	$ (8,722)	$ (8,722)		$ (29,615)		$ (17,140)
Balance at December 28, 2013	[2]	11,584	11,584		10,791		9,393
Balance at December 28, 2013		(48,533)	(48,533)		(2,302)		28,164
Balance at December 28, 2013		(45,671)	(45,671)		(21,126)		20,417
2014 activity		(1,761)	20,893	[1]	(12,475)	[1]	3,739
2014 activity		$ 793	793	[2]	1,398	[2]	1,526
2014 activity			(46,231)		(30,466)		$ (1,396)
2014 activity			$ (24,545)		$ (41,543)

[1] Net of tax of $661, $12,587, and $6,549 for 2015, 2014 and 2013, respectively.

[2] Net of tax of $0, $0 and $0 for 2015, 2014 and 2013, respectively.