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Note 6 - Acquisitions (Details) - Maximum Deferred Consideration Payments (BGA [Member], USD $) In Thousands, unless otherwise specified	Mar. 29, 2014
January 3, 2015 [Member]
Business Acquisition, Contingent Consideration [Line Items]
Estimated contingent consideration payments	$ 210
January 2, 2016 [Member]
Business Acquisition, Contingent Consideration [Line Items]
Estimated contingent consideration payments	222
December 31, 2016 [Member]
Business Acquisition, Contingent Consideration [Line Items]
Estimated contingent consideration payments	263
Estimated Future Payments [Member]
Business Acquisition, Contingent Consideration [Line Items]
Estimated contingent consideration payments	$ 695

X

- Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
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X

- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 35

-Paragraph 1

-Subparagraph b

-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 25

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant