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Income Taxes (Details 1) - USD ($)
$ in Thousands
12 Months Ended
Dec. 30, 2016
Jan. 01, 2016
Jan. 02, 2015
Increase (decrease) in taxes resulting from:      
Computed provision (benefit) for taxes based on income at statutory rate percentage 34.00% 34.00% 34.00%
Permanent differences percentage (3.00%) (0.60%) (0.20%)
Federal minimum taxes percentage 0.00% 0.00% (0.10%)
State minimum taxes, net of federal income tax benefit percentage (0.10%) (0.10%) (0.10%)
State tax benefit percentage 6.20% (6.60%) 4.60%
Tax rate difference due to foreign statutory rate percentage (8.90%) 1.60% 3.30%
Expiration of state net operating tax carryforwards percentage (7.20%) (47.30%) 0.00%
Foreign earnings not permanently reinvested percentage 6.50% (9.80%) 0.10%
Foreign dividend withholding percentage 3.80% (3.80%) (1.50%)
Expiration of charitable contribution carryover percentage (0.10%) (0.30%) (0.20%)
Other percentage 1.20% 2.50% 1.00%
Valuation allowance percentage (29.90%) 13.80% (38.00%)
Effective tax provision (benefit) rate percentage 2.50% (16.60%) 2.90%
Increase (decrease) in taxes resulting from:      
Computed provision (benefit) for taxes based on income at statutory rate $ (4,231) $ (1,905) $ (2,939)
Permanent differences 373 33 20
Federal minimum taxes 0 0 3
State minimum taxes, net of federal income tax benefit 12 8 10
State tax benefit (767) 370 (394)
Tax rate difference due to foreign statutory rate 1,109 (90) (288)
Expiration of state net operating tax carryforwards 892 2,650 0
Foreign earnings not permanently reinvested (809) 547 (11)
Foreign dividend withholding (478) 211 132
Expiration of charitable contribution carryover 12 15 18
Other (151) (140) (85)
Valuation allowance 3,723 (771) 3,281
Effective tax provision (benefit) rate $ (315) $ 928 $ (253)