Note 13 - Supplemental Condensed Consolidating Guarantor Financial Statements (Details) - Condensed Consolidating Statement of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014 Consolidation, Eliminations [Member]	Jun. 29, 2014 Guarantor Subsidiaries [Member]	Jun. 29, 2014 Non-Guarantor Subsidiaries [Member]	Jun. 29, 2014 Parent Company [Member]	Jun. 29, 2014 Consolidated Entities [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	$ 804	$ (9,036)	$ (5,757)	$ (11,248)	$ 11,750	$ 6,059	$ 804
Cash flows from investing activities:
Purchase of plant and equipment	(22,017)	(33,822)	5,413	(11,993)	(15,236)	(201)	(22,017)
Other	(1,658)	(1,573)	0	(212)	(612)	(834)	(1,658)
Net cash provided by (used in) investing activities	(23,675)	(15,621)	5,413	(12,205)	(15,848)	(1,035)	(23,675)
Cash flows from financing activities:
Borrowing of long term debt	3,663	0	0	0	3,663	0	3,663
Other			344	22,715	(19,462)	(3,597)	0
Proceeds from issuance of common stock	159	1,256	0	0	0	159	159
Dividends paid			0	0	0	(3,989)	(3,989)
Net cash provided by (used in) financing activities	(167)	(2,053)	344	22,715	(15,799)	(7,427)	(167)
Effect of exchange rate change on cash	167	(2,453)	0	0	167	0	167
Net increase (decrease) in cash	(22,871)	(29,163)	0	(738)	(19,730)	(2,403)	(22,871)
Balance at Beginning of Period	72,883	90,533	0	2,495	52,714	17,674	72,883
Balance at End of Period	$ 50,012	$ 61,370	$ 0	$ 1,757	$ 32,984	$ 15,271	$ 50,012