Note 13 - Supplemental Condensed Consolidating Guarantor Financial Statements (Details) - Consolidated Statement of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Note 13 - Supplemental Condensed Consolidating Guarantor Financial Statements (Details) - Consolidated Statement of Comprehensive Income [Line Items]
Net Income	$ 13,071	$ 10,965	$ 17,096	$ 17,962
Currency Translation Adjustment	1,078	(6,766)	4,182	(12,925)
Pension Liability Adjustment	(776)	(318)	(1,213)	1,567
Comprehensive Income (Loss)	13,373	3,881	20,065	6,604
Consolidation, Eliminations [Member]
Note 13 - Supplemental Condensed Consolidating Guarantor Financial Statements (Details) - Consolidated Statement of Comprehensive Income [Line Items]
Net Income	(13,848)		(20,892)
Currency Translation Adjustment	0		0
Pension Liability Adjustment	0		0
Comprehensive Income (Loss)	(13,848)		(20,892)
Guarantor Subsidiaries [Member]
Note 13 - Supplemental Condensed Consolidating Guarantor Financial Statements (Details) - Consolidated Statement of Comprehensive Income [Line Items]
Net Income	7,119		10,544
Currency Translation Adjustment	227		299
Pension Liability Adjustment	0		0
Comprehensive Income (Loss)	7,346		10,843
Non-Guarantor Subsidiaries [Member]
Note 13 - Supplemental Condensed Consolidating Guarantor Financial Statements (Details) - Consolidated Statement of Comprehensive Income [Line Items]
Net Income	6,729		10,348
Currency Translation Adjustment	965		3,874
Pension Liability Adjustment	(820)		(1,301)
Comprehensive Income (Loss)	6,874		12,921
Parent Company [Member]
Note 13 - Supplemental Condensed Consolidating Guarantor Financial Statements (Details) - Consolidated Statement of Comprehensive Income [Line Items]
Net Income	13,071		17,096
Currency Translation Adjustment	(114)		9
Pension Liability Adjustment	44		88
Comprehensive Income (Loss)	13,001		17,193
Consolidated Entities [Member]
Note 13 - Supplemental Condensed Consolidating Guarantor Financial Statements (Details) - Consolidated Statement of Comprehensive Income [Line Items]
Net Income	13,071		17,096
Currency Translation Adjustment	1,078		4,182
Pension Liability Adjustment	(776)		(1,213)
Comprehensive Income (Loss)	$ 13,373		$ 20,065