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Note 10 - Shareholders' Equity (Details) - Activity of Shareholders' Equity - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 03, 2016 | Oct. 04, 2015 | Jul. 05, 2015 | Apr. 05, 2015 | Dec. 28, 2014 | Sep. 28, 2014 | [2] | Jun. 29, 2014 | Mar. 30, 2014 | Jan. 03, 2016 | Dec. 28, 2014 | Dec. 29, 2013
Note 10 - Shareholders' Equity (Details) - Activity of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Balance |  |  |  |  | $ 306,639,000 |  |  |  |  |  | $ 306,639,000 |  |
Net income | $ 18,247,000 | [1] | $ 20,127,000 | $ 21,722,000 | 12,322,000 | $ 8,088,000 | [1] | $ (376,000) | $ 13,071,000 | $ 4,025,000 | 72,418,000 | $ 24,808,000 | $ 48,255,000
Pension liability adjustment |  |  |  |  |  |  |  |  |  |  | 6,072,000 | (15,280,000) | 1,409,000
Foreign currency translation adjustment |  |  |  |  |  |  |  |  |  |  | (32,575,000) | (28,351,000) | (5,241,000)
Foreign currency translation adjustment |  |  |  |  |  |  |  |  |  |  | (6,619,000) |  |
Balance | 342,366,000 |  |  |  |  | 306,639,000 |  |  |  |  | 342,366,000 | 306,639,000 |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Note 10 - Shareholders' Equity (Details) - Activity of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Balance |  |  |  |  | $ 6,597,000 |  |  |  |  | $ 6,631,000 | $ 6,597,000 | $ 6,631,000 | $ 6,606,000
Balance (in Shares) |  |  |  |  | 65,968,000 |  |  |  |  | 66,311,000 | 65,968,000 | 66,311,000 | 66,062,000
Net income |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 0
Stock issuances under employee option plans |  |  |  |  |  |  |  |  |  |  | $ 4,000 | $ 5,000 | $ 20,000
Stock issuances under employee option plans (in Shares) |  |  |  |  |  |  |  |  |  |  | 39,000 | 55,000 | 201,000
Other issuances of common stock |  |  |  |  |  |  |  |  |  |  | $ 59,000 | $ 49,000 | $ 67,000
Other issuances of common stock (in Shares) |  |  |  |  |  |  |  |  |  |  | 597,000 | 489,000 | 670,000
Unamortized stock compensation expense related to restricted stock awards |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 0
Cash dividends paid |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash dividends paid |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Forfeitures and compensation expense related to stock awards |  |  |  |  |  |  |  |  |  |  | $ (25,000) | $ (38,000) | $ (62,000)
Forfeitures and compensation expense related to stock awards (in Shares) |  |  |  |  |  |  |  |  |  |  | (253,000) | (387,000) | (622,000)
Share repurchases |  |  |  |  |  |  |  |  |  |  | $ (65,000) | $ (50,000) |
Share repurchases (in Shares) |  |  |  |  |  |  |  |  |  |  | (650,000) | (500,000) |
Pension liability adjustment |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 0
Pension liability adjustment |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Foreign currency translation adjustment |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Foreign currency translation adjustment |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 0
Other (in Shares) |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Balance | $ 6,570,000 |  |  |  |  | $ 6,597,000 |  |  |  |  | $ 6,570,000 | $ 6,597,000 | $ 6,631,000
Balance (in Shares) | 65,701,000 |  |  |  |  | 65,968,000 |  |  |  |  | 65,701,000 | 65,968,000 | 66,311,000
Additional Paid-in Capital [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Note 10 - Shareholders' Equity (Details) - Activity of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Balance |  |  |  |  | $ 368,603,000 |  |  |  |  | $ 374,597,000 | $ 368,603,000 | $ 374,597,000 | $ 366,677,000
Net income |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Stock issuances under employee option plans |  |  |  |  |  |  |  |  |  |  | 355,000 | 381,000 | 1,814,000
Other issuances of common stock |  |  |  |  |  |  |  |  |  |  | 9,746,000 | 10,361,000 | 10,805,000
Unamortized stock compensation expense related to restricted stock awards |  |  |  |  |  |  |  |  |  |  | (9,806,000) | (10,410,000) | (10,872,000)
Cash dividends paid |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash dividends paid |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Forfeitures and compensation expense related to stock awards |  |  |  |  |  |  |  |  |  |  | 14,670,000 | 1,293,000 | 6,173,000
Share repurchases |  |  |  |  |  |  |  |  |  |  | (13,241,000) | (7,619,000) |
Pension liability adjustment |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Foreign currency translation adjustment |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Balance | $ 370,327,000 |  |  |  |  | $ 368,603,000 |  |  |  |  | 370,327,000 | 368,603,000 | 374,597,000
Retained Earnings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Note 10 - Shareholders' Equity (Details) - Activity of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Balance |  |  |  |  | 39,737,000 |  |  |  |  | 24,226,000 | 39,737,000 | 24,226,000 | (16,746,000)
Net income |  |  |  |  |  |  |  |  |  |  | 72,418,000 | 24,808,000 | 48,255,000
Stock issuances under employee option plans |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other issuances of common stock |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Unamortized stock compensation expense related to restricted stock awards |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash dividends paid |  |  |  |  |  |  |  |  |  |  | (11,885,000) | (9,297,000) | (7,283,000)
Cash dividends paid |  |  |  |  |  |  |  |  |  |  | 11,885,000 | 9,297,000 | 7,283,000
Forfeitures and compensation expense related to stock awards |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Share repurchases |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Pension liability adjustment |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Foreign currency translation adjustment |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Balance | 100,270,000 |  |  |  |  | 39,737,000 |  |  |  |  | 100,270,000 | 39,737,000 | 24,226,000
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Note 10 - Shareholders' Equity (Details) - Activity of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Balance |  |  |  |  | (49,362,000) |  |  |  |  | (34,082,000) | (49,362,000) | (34,082,000) | (35,491,000)
Net income |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Stock issuances under employee option plans |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other issuances of common stock |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Unamortized stock compensation expense related to restricted stock awards |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash dividends paid |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash dividends paid |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Forfeitures and compensation expense related to stock awards |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Share repurchases |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Pension liability adjustment |  |  |  |  |  |  |  |  |  |  | 6,072,000 | (15,280,000) | 1,409,000
Foreign currency translation adjustment |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Balance | (43,290,000) |  |  |  |  | (49,362,000) |  |  |  |  | (43,290,000) | (49,362,000) | (34,082,000)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Note 10 - Shareholders' Equity (Details) - Activity of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Balance |  |  |  |  | $ (58,936,000) |  |  |  |  | $ (30,585,000) | (58,936,000) | (30,585,000) | (25,344,000)
Net income |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Stock issuances under employee option plans |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other issuances of common stock |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Unamortized stock compensation expense related to restricted stock awards |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash dividends paid |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash dividends paid |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Forfeitures and compensation expense related to stock awards |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Share repurchases |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Pension liability adjustment |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Foreign currency translation adjustment |  |  |  |  |  |  |  |  |  |  | (32,575,000) | (28,351,000) | (5,241,000)
Other |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Balance | $ (91,511,000) |  |  |  |  | $ (58,936,000) |  |  |  |  | $ (91,511,000) | $ (58,936,000) | $ (30,585,000)
[1] | Results for the fourth quarter of 2014 include debt retirement expenses of $12.0 million.
[2] | Results for the third quarter of 2014 include restructuring and asset impairment charges of $12.4 million.

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