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CUSTOMER DEPOSITS	12 Months Ended
CUSTOMER DEPOSITS	Apr. 30, 2020
CUSTOMER DEPOSITS
CUSTOMER DEPOSITS	NOTE 13—CUSTOMER DEPOSITS For certain customers, we collect payment at the time the order is placed. These deposits are classified as a liability and will be recognized as revenue at the time of shipment in accordance with our revenue recognition policy. As of April 30, 2020 and April 30, 2019 we had $16,000 and $24,000, respectively in customer deposits related to this arrangement.