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Note 6 - Stock-based Compensation (Detail) - Stock option activity (USD $)
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3 Months Ended | |
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Jul. 01, 2012
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Jul. 03, 2011
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| Outstanding at Beginning of Period (in Dollars per share) | $ 3.57 | $ 3.31 |
| Outstanding at Beginning of Period | 573,000 | 747,000 |
| Granted (in Dollars per share) | $ 5.42 | $ 4.81 |
| Granted | 110,000 | 100,000 |
| Exercised (in Dollars per share) | $ 3.05 | $ 3.24 |
| Exercised | (261,250) | (193,500) |
| Outstanding at End of Period (in Dollars per share) | $ 4.38 | $ 3.56 |
| Outstanding at End of Period | 421,750 | 653,500 |
| Exercisable at End of Period (in Dollars per share) | $ 3.86 | $ 3.28 |
| Exercisable at End of Period | 261,750 | 423,500 |
| X | ||||||||||
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- Definition
The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Gross number of share options (or share units) granted during the period. No definition available.
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| X | ||||||||||
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- Definition
The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
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| X | ||||||||||
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- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded. No definition available.
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| X | ||||||||||
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- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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