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Note 8 - Income Taxes (Details) (USD $)
 12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Dec. 28, 2013
NOL Carryforwards Expiring in 2034 [Member]
Foreign Tax Authority [Member]
Dec. 28, 2013
NOL Carryforwards Do Not Expire [Member]
Foreign Tax Authority [Member]
Dec. 28, 2013
Start Year [Member]
Internal Revenue Service (IRS) [Member]
Dec. 28, 2013
Start Year [Member]
UNITED KINGDOM
Dec. 28, 2013
Start Year [Member]
CANADA
Dec. 28, 2013
Start Year [Member]
IRELAND
Dec. 28, 2013
End Year [Member]
Internal Revenue Service (IRS) [Member]
Dec. 28, 2013
End Year [Member]
UNITED KINGDOM
Dec. 28, 2013
End Year [Member]
CANADA
Dec. 28, 2013
End Year [Member]
IRELAND
Dec. 28, 2013
Deferred Tax Assets, Tax Credits [Member]
Dec. 28, 2013
Internal Revenue Service (IRS) [Member]
Dec. 28, 2013
Foreign Tax Authority [Member]
Note 8 - Income Taxes (Details) [Line Items]                              
Deferred Tax Assets, Operating Loss Carryforwards $ 6,462,000 $ 4,336,000                          
Operating Loss Carryforwards, Valuation Allowance 6,500,000                            
Operating Loss Carryforwards     1,200,000 800,000                   14,000,000 2,000,000
Deferred Tax Assets, Tax Credit Carryforwards 5,453,000 4,585,000                          
Deferred Tax Assets, Valuation Allowance 20,987,000 20,865,000                     5,500,000    
Undistributed Earnings of Foreign Subsidiaries 8,000,000                            
Unrecognized Tax Benefits 200,000 200,000                          
Unrecognized Tax Benefits that Would Impact Effective Tax Rate   200,000                          
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound $ 100,000                            
Open Tax Year         2010 2007 2010 2008 2013 2013 2013 2013