v2.4.0.8
Income taxes (Tax reconciliation) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Income Tax Disclosure [Abstract]      
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate $ (232) $ 9,392 $ 7,773
Income Tax Reconciliation, Nondeductible Expense, Impairment Losses 2,799 0 0
Income Tax Reconciliation, Impact of Foreign Exchange (224) 18 194
Income Tax Reconciliation, Change in Deferred Tax Assets Valuation Allowance 3,434 (1,354) (1,054)
Income Tax Reconciliation, Foreign Income Tax Rate Differential 2,535 2,820 824
Income Tax Reconciliation, Change in Enacted Tax Rate 29 (406) 1,036
Income Tax Reconciliation Benefit Of Cross Jurisdictional Financing Structures (626) (210) (1,231)
Unrecognized Tax Benefits, Period Increase (Decrease) 153 180 0
Income Tax Reconciliation Expiring Non Capital Losses And Research And Development Credits 0 0 2,002
Income Tax Reconciliation, Other Reconciling Items (88) 494 352
Income Tax Expense (Benefit), Continuing Operations, Total $ 7,780 $ 10,934 $ 9,896