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Note 16 - Subsequent Event (Details Textual) - USD ($) $ in Thousands		12 Months Ended
	Jan. 03, 2016	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013	Mar. 11, 2016
Subsequent Event [Member] | Share Repurchase Program 2015 [Member]
Stock Repurchased and Retired During Period, Shares	132,500
Stock Repurchase Program, Remaining Authorized Repurchase Amount					$ 7,600
Subsequent Event [Member] | Share Repurchase Programs 2015 [Member]
Payments for Repurchase of Common Stock	$ 1,500
Stock Repurchased and Retired During Period, Shares		1,706,571	326,990	27,533
Payments for Repurchase of Common Stock		$ 25,909	$ 3,364	$ 216

X

- Definition

The cash outflow to reacquire common stock during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

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X

- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

No definition available.

+ Details

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X

- Definition

Number of shares that have been repurchased and retired during the period.

+ References

Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

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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