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Note 8 - Income Taxes (Details) - Unrecognized tax benefits (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 29, 2013	Dec. 31, 2012	Dec. 31, 2011
Unrecognized tax benefits [Abstract]
Balance	$ 6,779	$ 7,508	$ 7,508	$ 6,779
Balance	$ 6,779	$ 7,508	$ 7,508	$ 6,779

X

- Details

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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

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