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Note 2 - Goodwill, Customer Relationships and Other Intangible Assets (Details) - Other Intangible Assets (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Jun. 30, 2013 | Jul. 01, 2012 | Mar. 31, 2013
Finite-Lived Intangible Assets [Line Items] |  |  |
Carrying Amount | $ 13,024 |  | $ 13,054
Weighted Average Estimated Useful Life | 9 years |  |
Accumulated Amortization | 7,201 |  | 7,064
Amortization Expense | 183 | 187 |
Trademarks and Trade Names [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Carrying Amount | 1,987 |  |
Weighted Average Estimated Useful Life | 15 years |  |
Accumulated Amortization | 569 |  |
Amortization Expense | 33 | 33 |
Licensing Agreements [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Carrying Amount | 3,571 |  |
Weighted Average Estimated Useful Life | 3 years |  |
Accumulated Amortization | 3,571 |  |
Amortization Expense | 2 | 2 |
Noncompete Agreements [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Carrying Amount | 454 |  |
Weighted Average Estimated Useful Life | 7 years |  |
Accumulated Amortization | 350 |  |
Amortization Expense | 14 | 14 |
Patents [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Carrying Amount | 553 |  |
Weighted Average Estimated Useful Life | 10 years |  |
Accumulated Amortization | 171 |  |
Amortization Expense | 14 | 14 |
Customer Relationships [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Carrying Amount | 5,411 |  |
Weighted Average Estimated Useful Life | 12 years |  |
Accumulated Amortization | 2,540 |  |
Amortization Expense | 120 | 121 |
Internally Developed Intangible Assets [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Carrying Amount | 1,048 |  |
Amortization Expense |  | $ 3 |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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