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Note A - Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Sep. 28, 2019
Notes Tables |
Contract with Customer, Asset and Liability [Table Text Block] |
|  | Fiscal Year Ended |
|  | September 28, |  |  | September 29, |
|  | 2019 |  |  | 2018 |
|  | (in thousands) |
Beginning Balance |  | $ | 1,865 |  |  | $ | 1,956 |
Additions to contract liability |  |  | 6,308 |  |  |  | 6,887 |
Amounts recognized as revenue |  |  | (6,839 | ) |  |  | (6,978 | )
Ending Balance |  | $ | 1,334 |  |  | $ | 1,865 |
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] |
|  | (in thousands) |
Balance at September 29, 2018 |  | $ | 394 |
Additions based on tax positions related to the current year |  |  | 20 |
Reductions for tax positions of prior years |  |  | - |
Settlements |  |  | - |
Balance at September 28, 2019 |  | $ | 414 |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Fiscal Year Ended September 28, 2019 |
|  | Income |  |  | Shares |  |  | Per Share |
|  | (Numerator) |  |  | (Denominator) |  |  | Amount |
|  | (in thousands, except per share amounts) |
Earnings Per Basic Share |  |  |  |  |  |  |  |  |  |  |  |
Net Income available to common stockholders |  | $ | 94,819 |  |  |  | 18,812 |  |  | $ | 5.04 |
Effect of Dilutive Securities |  |  |  |  |  |  |  |  |  |  |  |
Options |  |  | - |  |  |  | 147 |  |  |  | (0.04 | )
Earnings Per Diluted Share |  |  |  |  |  |  |  |  |  |  |  |
Net Income available to common stockholders plus assumed conversions |  | $ | 94,819 |  |  |  | 18,959 |  |  | $ | 5.00 |
|  | Fiscal Year Ended September 29, 2018 |
|  | Income |  |  | Shares |  |  | Per Share |
|  | (Numerator) |  |  | (Denominator) |  |  | Amount |
|  | (in thousands, except per share amounts) |
Earnings Per Basic Share |  |  |  |  |  |  |  |  |  |  |  |
Net Income available to common stockholders |  | $ | 103,596 |  |  |  | 18,694 |  |  | $ | 5.54 |
Effect of Dilutive Securities |  |  |  |  |  |  |  |  |  |  |  |
Options |  |  | - |  |  |  | 123 |  |  |  | (0.03 | )
Earnings Per Diluted Share |  |  |  |  |  |  |  |  |  |  |  |
Net Income available to common stockholders plus assumed conversions |  | $ | 103,596 |  |  |  | 18,817 |  |  | $ | 5.51 |
|  | Fiscal Year Ended September 30, 2017 |
|  | Income |  |  | Shares |  |  | Per Share |
|  | (Numerator) |  |  | (Denominator) |  |  | Amount |
|  | (in thousands, except per share amounts) |
Earnings Per Basic Share |  |  |  |  |  |  |  |  |  |  |  |
Net Income available to common stockholders |  | $ | 79,174 |  |  |  | 18,707 |  |  | $ | 4.23 |
Effect of Dilutive Securities |  |  |  |  |  |  |  |  |  |  |  |
Options |  |  | - |  |  |  | 109 |  |  |  | (0.02 | )
Earnings Per Diluted Share |  |  |  |  |  |  |  |  |  |  |  |
Net Income available to common stockholders plus assumed conversions |  | $ | 79,174 |  |  |  | 18,816 |  |  | $ | 4.21 |
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] |
|  | Fiscal year ended |
|  | September 28, |  |  | September 29, |  |  | September 30, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
|  | (in thousands) |
Stock options |  | $ | 1,743 |  |  | $ | 1,432 |  |  | $ | (436 | )
Stock purchase plan |  |  | 390 |  |  |  | 423 |  |  |  | 363 |
Stock issued to an outside director |  |  | 66 |  |  |  | 64 |  |  |  | 56 |
Restricted stock issued to employees |  |  | - |  |  |  | 4 |  |  |  | 4 |
Total share-based compensation |  | $ | 2,199 |  |  | $ | 1,923 |  |  | $ | (13 | )
The above compensation is net of tax benefits |  | $ | 2,030 |  |  | $ | 1,935 |  |  | $ | 3,061 |

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