Note 11 - Gain on Settlements, Commitments and Contingencies (Details) (USD $)
0 Months Ended 3 Months Ended 12 Months Ended
Jun. 28, 2013
Sep. 29, 2013
Dec. 28, 2014
Dec. 29, 2013
Dec. 30, 2012
Note 11 - Gain on Settlements, Commitments and Contingencies (Details) [Line Items]          
Gain (Loss) Related to Litigation Settlement   $ 2,200,000 $ 0 $ 1,719,000 $ 683,000
Litigation Settlement, Amount         2,500,000
Loss Contingency, Damages Sought, Value 30,000,000        
Discontinued Operations [Member]          
Note 11 - Gain on Settlements, Commitments and Contingencies (Details) [Line Items]          
Gain (Loss) Related to Litigation Settlement   $ 437,000