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Note 5 - Stock-based Compensation (Details) - Stock Grant Compensation (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Jun. 30, 2013 | Jul. 01, 2012
Note 5 - Stock-based Compensation (Details) - Stock Grant Compensation [Line Items] |  |
Stock grant compensation - employees | $ 92 | $ 52
Stock grant compensation - non-employee directors | 46 | 30
Stock grant compensation - total | 138 | 82
Fiscal Year 2011 [Member] |  |
Note 5 - Stock-based Compensation (Details) - Stock Grant Compensation [Line Items] |  |
Stock grant compensation - employees | 43 | 52
Stock grant compensation - non-employee directors |  | 14
Stock grant compensation - total | 43 | 66
Fiscal Year 2012 [Member] |  |
Note 5 - Stock-based Compensation (Details) - Stock Grant Compensation [Line Items] |  |
Stock grant compensation - non-employee directors | 17 | 16
Stock grant compensation - total | 17 | 16
Fiscal Year 2013 [Member] |  |
Note 5 - Stock-based Compensation (Details) - Stock Grant Compensation [Line Items] |  |
Stock grant compensation - non-employee directors | 29 |
Stock grant compensation - total | 29 |
Fiscal Year 2014 [Member] |  |
Note 5 - Stock-based Compensation (Details) - Stock Grant Compensation [Line Items] |  |
Stock grant compensation - employees | 49 |
Stock grant compensation - total | $ 49 |

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- Details
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- Definition Expense related to stock granted during period for employees. + References No definition available. + Details
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