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Note M - Stockholders' Equity, Stock Plans and Other Employee Benefit Plans (Tables) | 12 Months Ended
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Mar. 29, 2020
Notes Tables |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
Weighted-average option fair values |  | $ | 25.6314 |
Expected life (years) |  |  | 4.5 |
Interest rate |  |  | 2.87 | %
Volatility |  |  | 32.57 | %
Dividend Yield |  |  | 1.11 | %
Share-based Payment Arrangement, Cost by Plan [Table Text Block] |
|  | March 29, 2020 |  |  | March 31, 2019 |
Stock options |  | $ | 85 |  |  | $ | 102 |
Restricted stock |  |  | 31 |  |  |  | 60 |
|  | $ | 116 |  |  | $ | 162 |
Share-based Payment Arrangement, Option, Activity [Table Text Block] |
|  | 2020 |  |  | 2019 |
|  |  |  |  |  | Weighted- |  |  |  |  |  |  | Weighted- |
|  |  |  |  |  | Average |  |  |  |  |  |  | Average |
|  |  |  |  |  | Exercise |  |  |  |  |  |  | Exercise |
|  | Shares |  |  | Price |  |  | Shares |  |  | Price |
Options outstanding – beginning of year |  |  | 42,234 |  |  | $ | 46.807 |  |  |  | 68,498 |  |  | $ | 33.438 |
Granted |  |  | - |  |  |  | - |  |  |  | 10,000 |  |  |  | 89.90 |
Expired |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Exercised |  |  | (32,234 | ) |  |  | 33.438 |  |  |  | (36,264 | ) |  |  | 33.438 |
Options outstanding - end of year |  |  | 10,000 |  |  | $ | 89.90 |  |  |  | 42,234 |  |  | $ | 46.807 |
Options exercisable - end of year |  |  | 3,333 |  |  | $ | 89.90 |  |  |  | 32,234 |  |  | $ | 33.438 |
Share-based Payment Arrangement, Activity [Table Text Block] |
|  |  |  |  |  | Weighted- |  |  | Weighted- |  |  |  |  |
|  |  |  |  |  | Average |  |  | Average |  |  | Aggregate |
|  |  |  |  |  | Exercise |  |  | Remaining |  |  | Intrinsic |
|  | Shares |  |  | Price |  |  | Contractual Life |  |  | Value |
Options outstanding at March 29, 2020 |  |  | 10,000 |  |  | $ | 89.90 |  |  |  | 3.45 |  |  | $ | - |
Options exercisable at March 29, 2020 |  |  | 3,333 |  |  | $ | 89.90 |  |  |  | 3.45 |  |  | $ | - |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] |
|  |  |  |  |  | Weighted- |
|  |  |  |  |  | Average |
|  |  |  |  |  | Grant-date Fair value |
|  | Shares |  |  | Per share |
Unvested restricted stock at March 31, 2019 |  |  | 1,000 |  |  | $ | 89.90 |
Granted |  |  | - |  |  | $ | - |
Vested |  |  | 333 |  |  | $ | 89.90 |
Unvested restricted stock at March 29, 2020 |  |  | 667 |  |  | $ | 89.90 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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