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Note 6 - Acquisitions (Detail) - Maximum Deferred Consideratoin Payments (USD $) In Thousands, unless otherwise specified	Sep. 29, 2012
Maximum deferred consideration	$ 1,252
December 29, 2012 [Member] | PSG [Member]
Maximum deferred consideration	11
December 29, 2012 [Member]
Maximum deferred consideration	11
December 28, 2013 [Member] | PSG [Member]
Maximum deferred consideration	184
December 28, 2013 [Member] | BGA [Member]
Maximum deferred consideration	228
December 28, 2013 [Member]
Maximum deferred consideration	412
January 3, 2015 [Member] | BGA [Member]
Maximum deferred consideration	253
January 3, 2015 [Member]
Maximum deferred consideration	253
January 2, 2016 [Member] | BGA [Member]
Maximum deferred consideration	269
January 2, 2016 [Member]
Maximum deferred consideration	269
December 31, 2016 [Member] | BGA [Member]
Maximum deferred consideration	307
December 31, 2016 [Member]
Maximum deferred consideration	307
PSG [Member]
Maximum deferred consideration	195
BGA [Member]
Maximum deferred consideration	$ 1,057

X

- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)(3)

-URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e6927-128479



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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 68

-Subparagraph g

-Clause 3

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant