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Note 10 - Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Schedule of Stockholders Equity [Table Text Block] |
|  | SHARES |  |  | AMOUNT |  |  | ADDITIONAL PAID-IN CAPITAL |  |  | RETAINED EARNINGS (DEFICIT) |  |  | PENSION LIABILITY |  |  | FOREIGN CURRENCY TRANSLATION ADJUSTMENT |
|  | (in thousands) |
Balance, at December 28, 2014 |  |  | 65,968 |  |  | $ | 6,597 |  |  | $ | 368,603 |  |  | $ | 39,737 |  |  | $ | (49,362 | ) |  | $ | (58,936 | )
Net income |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 72,418 |  |  |  | 0 |  |  |  | 0 |
Stock issuances under employee option plans |  |  | 39 |  |  |  | 4 |  |  |  | 355 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Other issuances of common stock |  |  | 597 |  |  |  | 59 |  |  |  | 9,746 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Unamortized stock compensation expense related to restricted stock awards |  |  | 0 |  |  |  | 0 |  |  |  | (9,806 | ) |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Cash dividends paid |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | (11,885 | ) |  |  | 0 |  |  |  | 0 |
Forfeitures and compensation expense related to stock awards |  |  | (253 | ) |  |  | (25 | ) |  |  | 14,670 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Share repurchases |  |  | (650 | ) |  |  | (65 | ) |  |  | (13,241 | ) |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Pension liability adjustment |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 6,072 |  |  |  | 0 |
Foreign currency translation adjustment |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | (32,575 | )
Other |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Balance, at January 3, 2016 |  |  | 65,701 |  |  | $ | 6,570 |  |  | $ | 370,327 |  |  | $ | 100,270 |  |  | $ | (43,290 | ) |  | $ | (91,511 | )
|  | SHARES |  |  | AMOUNT |  |  | ADDITIONAL PAID-IN CAPITAL |  |  | RETAINED EARNINGS (DEFICIT) |  |  | PENSION LIABILITY |  |  | FOREIGN CURRENCY TRANSLATION ADJUSTMENT |
|  | (in thousands) |
Balance, at January 3, 2016 |  |  | 65,701 |  |  | $ | 6,570 |  |  | $ | 370,327 |  |  | $ | 100,270 |  |  | $ | (43,290 | ) |  | $ | (91,511 | )
Net income |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 54,162 |  |  |  | 0 |  |  |  | 0 |
Stock issuances under employee plans |  |  | 17 |  |  |  | 2 |  |  |  | 251 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Other issuances of common stock |  |  | 277 |  |  |  | 28 |  |  |  | 4,726 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Unamortized stock compensation expense related to restricted stock awards |  |  | 0 |  |  |  | 0 |  |  |  | (4,754 | ) |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Cash dividends paid |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | (14,285 | ) |  |  | 0 |  |  |  | 0 |
Forfeitures and compensation expense related to stock awards |  |  | (579 | ) |  |  | (58 | ) |  |  | 979 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Share Repurchases |  |  | (1,178 | ) |  |  | (118 | ) |  |  | (18,378 | ) |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Pension liability adjustment |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | (11,572 | ) |  |  | 0 |
Foreign currency translation adjustment |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | (19,011 | )
Windfall tax benefit - share-based payment awards |  |  | 0 |  |  |  | 0 |  |  |  | 6,300 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Other |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 91 |  |  |  | 0 |  |  |  | 0 |
Balance, at January 1, 2017 |  |  | 64,238 |  |  | $ | 6,424 |  |  | $ | 359,451 |  |  | $ | 140,238 |  |  | $ | (54,862 | ) |  | $ | (110,522 | )
|  | SHARES |  |  | AMOUNT |  |  | ADDITIONAL PAID-IN CAPITAL |  |  | RETAINED EARNINGS (DEFICIT) |  |  | PENSION LIABILITY |  |  | FOREIGN CURRENCY TRANSLATION ADJUSTMENT |  |  | CASH FLOW HEDGE |
|  | (in thousands) |  |  |  |  |
Balance, at January 1, 2017 |  |  | 64,238 |  |  | $ | 6,424 |  |  | $ | 359,451 |  |  | $ | 140,238 |  |  | $ | (54,862 | ) |  | $ | (110,522 | ) |  | $ | 0 |
Net income |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 53,246 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Stock issuances under employee plans |  |  | 36 |  |  |  | 4 |  |  |  | 508 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Other issuances of common stock |  |  | 253 |  |  |  | 25 |  |  |  | 4,507 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Unamortized stock compensation expense related to restricted stock awards |  |  | 0 |  |  |  | 0 |  |  |  | (4,532 | ) |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Cash dividends paid |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | (15,487 | ) |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Forfeitures and compensation expense related to stock awards |  |  | (93 | ) |  |  | (9 | ) |  |  | 5,574 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Share Repurchases |  |  | (4,628 | ) |  |  | (463 | ) |  |  | (91,113 | ) |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Pension liability adjustment |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | (1,692 | ) |  |  | 0 |  |  |  | 0 |
Foreign currency translation adjustment |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 31,579 |  |  |  | 0 |
Cash flow hedge unrealized gain (loss) |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 904 |
Windfall tax benefit - share-based payment awards |  |  | 0 |  |  |  | 0 |  |  |  | (3,124 | ) |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Adoption of new accounting standard - share-based payment awards |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 9,435 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Balance, at December 31, 2017 |  |  | 59,806 |  |  | $ | 5,981 |  |  | $ | 271,271 |  |  | $ | 187,432 |  |  | $ | (56,554 | ) |  | $ | (78,943 | ) |  | $ | 904 |
Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  | Shares |  |  | Weighted Average Exercise Price |
Outstanding at January 1, 2017 |  |  | 87,500 |  |  | $ | 8.75 |
Granted |  |  | 0 |  |  |  | 0 |
Exercised |  |  | 5,000 |  |  |  | 12.43 |
Forfeited or cancelled |  |  | 0 |  |  |  | 0 |
Outstanding at December 31, 2017 (a) |  |  | 82,500 |  |  | $ | 8.53 |
Exercisable at December 31, 2017 (b) |  |  | 82,500 |  |  | $ | 8.53 |
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block] |
|  | Shares |  |  | Weighted Average Grant Date Fair Value |
Outstanding at January 1, 2017 |  |  | 505,000 |  |  | $ | 17.05 |
Granted |  |  | 253,000 |  |  |  | 17.91 |
Vested |  |  | 284,000 |  |  |  | 16.61 |
Forfeited or cancelled |  |  | 6,000 |  |  |  | 16.99 |
Outstanding at December 31, 2017 |  |  | 468,000 |  |  | $ | 17.79 |
Schedule of Nonvested Performance-based Units Activity [Table Text Block] |
|  | Performance Shares |  |  | Weighted Average Grant Date Fair Value |
Outstanding at January 1, 2017 |  |  | 368,500 |  |  | $ | 17.20 |
Granted |  |  | 354,000 |  |  |  | 17.80 |
Vested |  |  | 31,000 |  |  |  | 17.22 |
Forfeited or canceled |  |  | 22,000 |  |  |  | 17.29 |
Outstanding at December 31, 2017 |  |  | 669,500 |  |  | $ | 17.51 |

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