Note 2 - Correction of Immaterial Errors (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | 12 Months Ended | 60 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Oct. 01, 2016 |
Sep. 26, 2015 |
Oct. 01, 2016 |
Sep. 26, 2015 |
Jan. 02, 2016 |
Dec. 27, 2014 |
Dec. 28, 2013 |
Dec. 29, 2012 |
Dec. 31, 2011 |
Jan. 02, 2016 |
|
| Restatement Adjustment [Member] | Foreign Tax Authority [Member] | ||||||||||
| Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | $ 1,500 | |||||||||
| Income Tax Expense (Benefit) | $ 1,600 | $ 1,300 | $ 1,000 | $ 900 | $ 100 | $ 4,900 | ||||
| Restatement Adjustment [Member] | ||||||||||
| Income Tax Expense (Benefit) | 1,600 | 1,318 | ||||||||
| Income Tax Expense (Benefit) | $ (369) | $ 1,317 | $ 14,281 | $ 16,761 | $ 26,082 | $ 33,546 | ||||