Note 4 - Stock Option Activity (Details) - $ / shares |
9 Months Ended | |
|---|---|---|
Dec. 27, 2015 |
Dec. 28, 2014 |
|
| Outstanding at Beginning of Period (in dollars per share) | $ 6.83 | $ 5.76 |
| Outstanding at Beginning of Period (in shares) | 330,000 | 185,000 |
| Granted (in dollars per share) | $ 8.38 | $ 7.90 |
| Granted (in shares) | 110,000 | 165,000 |
| Exercised (in dollars per share) | $ 6.30 | $ 5.78 |
| Exercised (in shares) | (55,000) | (10,000) |
| Outstanding at End of Period (in dollars per share) | $ 7.35 | $ 6.80 |
| Outstanding at End of Period (in shares) | 385,000 | 340,000 |
| Exercisable at End of Period (in dollars per share) | $ 6.52 | $ 5.60 |
| Exercisable at End of Period (in shares) | 192,500 | 125,000 |
| X | ||||||||||
- 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 | ||||||||||
- 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 | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
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| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- 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 | ||||||||||
- 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 | ||||||||||
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
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| X | ||||||||||
- 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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