Note 13 - Supplemental Condensed Consolidating Guarantor Financial Statements (Details) - Condensed Consolidating Statement of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used for) operating activities	$ (2,560)	$ (8,997)
Cash flows from investing activities:
Purchase of plant and equipment	(9,062)	(14,883)
Other	(958)	(485)
Net cash provided by (used for) investing activities	(10,020)	(15,368)
Cash flows from financing activities:
Borrowing of long term debt	4,140	0
Proceeds from issuance of common stock	105	868
Net cash provided by (used for) financing activities	2,250	(786)
Effect of exchange rate change on cash	(61)	(303)
Net increase (decrease) in cash	(10,391)	(25,454)
Balance at beginning of period	72,883	90,533
Balance at end of period	62,492	65,079
Consolidation, Eliminations [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used for) operating activities	(5,195)
Cash flows from investing activities:
Purchase of plant and equipment	5,413
Other	0
Net cash provided by (used for) investing activities	5,413
Cash flows from financing activities:
Borrowing of long term debt	0
Other	(218)
Proceeds from issuance of common stock	0
Dividends paid	0
Net cash provided by (used for) financing activities	(218)
Effect of exchange rate change on cash	0
Net increase (decrease) in cash	0
Balance at beginning of period	0
Balance at end of period	0
Guarantor Subsidiaries [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used for) operating activities	(13,928)
Cash flows from investing activities:
Purchase of plant and equipment	(6,205)
Other	142
Net cash provided by (used for) investing activities	(6,063)
Cash flows from financing activities:
Borrowing of long term debt	0
Other	19,574
Proceeds from issuance of common stock	0
Dividends paid	0
Net cash provided by (used for) financing activities	19,574
Effect of exchange rate change on cash	0
Net increase (decrease) in cash	(417)
Balance at beginning of period	2,495
Balance at end of period	2,078
Non-Guarantor Subsidiaries [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used for) operating activities	3,719
Cash flows from investing activities:
Purchase of plant and equipment	(8,075)
Other	(814)
Net cash provided by (used for) investing activities	(8,889)
Cash flows from financing activities:
Borrowing of long term debt	4,140
Other	(14,426)
Proceeds from issuance of common stock	0
Dividends paid	0
Net cash provided by (used for) financing activities	(10,286)
Effect of exchange rate change on cash	(61)
Net increase (decrease) in cash	(15,517)
Balance at beginning of period	52,714
Balance at end of period	37,197
Parent Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used for) operating activities	12,844
Cash flows from investing activities:
Purchase of plant and equipment	(195)
Other	(286)
Net cash provided by (used for) investing activities	(481)
Cash flows from financing activities:
Borrowing of long term debt	0
Other	(4,930)
Proceeds from issuance of common stock	105
Dividends paid	(1,995)
Net cash provided by (used for) financing activities	(6,820)
Effect of exchange rate change on cash	0
Net increase (decrease) in cash	5,543
Balance at beginning of period	17,674
Balance at end of period	23,217
Consolidated Entities [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used for) operating activities	(2,560)
Cash flows from investing activities:
Purchase of plant and equipment	(9,062)
Other	(958)
Net cash provided by (used for) investing activities	(10,020)
Cash flows from financing activities:
Borrowing of long term debt	4,140
Other	0
Proceeds from issuance of common stock	105
Dividends paid	(1,995)
Net cash provided by (used for) financing activities	2,250
Effect of exchange rate change on cash	(61)
Net increase (decrease) in cash	(10,391)
Balance at beginning of period	72,883
Balance at end of period	$ 62,492