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Note 4 - Goodwill (Details) (USD $) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Mar. 31, 2013 | Jul. 01, 2012 | Jun. 30, 2013 | Jul. 01, 2012
Note 4 - Goodwill (Details) [Line Items] |  |  |  |  |
Goodwill, Impairment Loss | $ 0 | $ 6,900,000 | $ 0 | $ 6,900,000 | $ 0
Fair Value Inputs, Long-term Revenue Growth Rate | 3.00% |  |  |  |
Minimum [Member] |  |  |  |  |
Note 4 - Goodwill (Details) [Line Items] |  |  |  |  |
Expected after-tax cash flows period range | 2013 |  |  | 2013 |
Maximum [Member] |  |  |  |  |
Note 4 - Goodwill (Details) [Line Items] |  |  |  |  |
Expected after-tax cash flows period range | 2017 |  |  | 2017 |

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- Definition Percentage of assumed long-term growth in revenues, used as an input to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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