Note 12 - Treasury Stock Transactions (Details) (Stock Repurchase Program 2013 [Member], USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
Apr. 04, 2015	Mar. 29, 2014	Oct. 28, 2013
Stock Repurchase Program 2013 [Member]
Note 12 - Treasury Stock Transactions (Details) [Line Items]
Stock Repurchase Program, Authorized Amount (in Dollars)			$ 5.0
Treasury Stock, Shares, Acquired	0	0

Number of shares that have been repurchased during the period and are being held in treasury.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration