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Note 13 - Cash Flow Information - Supplement Schedule of Non-cash Investing and Financing Activities (Details) - USD ($)
$ in Thousands
12 Months Ended
May 01, 2021
May 02, 2020
Apr. 27, 2019
Demonstration equipment transferred to inventory $ 56 $ 10 $ 97
Purchases of property and equipment included in accounts payable 667 1,951 1,106
Contributions of common stock under the ESPP $ 565 $ 2,311 $ 1,650