Note 3 - Acquisition of Businesses (Details) - Unaudited Pro Forma Results (Hamlin, Inc. [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Hamlin, Inc. [Member]
Note 3 - Acquisition of Businesses (Details) - Unaudited Pro Forma Results [Line Items]
Revenues (in Dollars)	$ 201,346	$ 190,215	$ 390,055	$ 368,242
Net income (in Dollars)	$ 26,239	$ 23,700	$ 41,962	$ 41,765
Net income per share:
Basic (in Dollars per share)	$ 1.17	$ 1.08	$ 1.88	$ 1.92
Diluted (in Dollars per share)	$ 1.16	$ 1.07	$ 1.86	$ 1.90
Weighted-average shares and equivalent shares outstanding:
Basic	22,296	21,778	22,197	21,693
Diluted	22,499	22,074	22,431	22,004

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+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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