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Note 1 - Significant Accounting Policies (Tables) | 12 Months Ended
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Apr. 27, 2019
Notes Tables |
Financing Receivable, Allowance for Credit Loss [Table Text Block] |
|  | (In thousands) |
|  | Fiscal 2019 |  |  | Fiscal 2018 |  |  | Fiscal 2017 |
Balance at beginning of year |  | $ | 452 |  |  | $ | 468 |  |  | $ | 484 |
Net charge to expense |  |  | 87 |  |  |  | 34 |  |  |  | 74 |
Net charge-off |  |  | (23 | ) |  |  | (50 | ) |  |  | (90 | )
Balance at end of year |  | $ | 516 |  |  | $ | 452 |  |  | $ | 468 |

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