Note 12 - Allocation of Plan Assets (Details)	Jan. 02, 2016	Dec. 27, 2014
Equity Securities [Member] | United States Pension Plan of US Entity [Member]
Equity securities	0.00%	0.00%
Equity Securities [Member] | Foreign Pension Plan [Member]
Equity securities	30.00%	30.00%
Debt Securities [Member] | United States Pension Plan of US Entity [Member]
Equity securities	0.00%	91.00%
Debt Securities [Member] | Foreign Pension Plan [Member]
Equity securities	65.00%	68.00%
Cash [Member] | United States Pension Plan of US Entity [Member]
Equity securities	0.00%	9.00%
Cash [Member] | Foreign Pension Plan [Member]
Equity securities	5.00%	2.00%
United States Pension Plan of US Entity [Member]
Equity securities	0.00%	100.00%
Foreign Pension Plan [Member]
Equity securities	100.00%	100.00%