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v3.22.2.2

REVENUES - Additional Information (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 31, 2022 USD ($) customer | Oct. 31, 2021 USD ($) ft² customer | Oct. 31, 2022 USD ($) customer | Oct. 31, 2021 USD ($) ft² customer
REVENUES |  |  |  |
Number of customers | customer | 4 | 3 | 3 | 3
Customer outstanding receivables | $ 0 | $ 0 | $ 0 | $ 0
Revenues | 16,149,000 | 16,112,000 | 26,856,000 | 26,098,000
Customer A |  |  |  |
REVENUES |  |  |  |
Revenues | 4,400,000 | 3,700,000 | 4,400,000 | 6,700,000
Customer B |  |  |  |
REVENUES |  |  |  |
Revenues | 4,000,000 | 2,400,000 | 4,200,000 | 3,700,000
Customer C |  |  |  |
REVENUES |  |  |  |
Revenues | 2,000,000 | $ 1,700,000 | $ 4,000,000 | $ 3,400,000
Customer D |  |  |  |
REVENUES |  |  |  |
Revenues | $ 1,900,000 |  |  |
Warehouse and Office Buildings |  |  |  |
REVENUES |  |  |  |
Surface areas of land held | ft² |  | 143,000 |  | 143,000
Warehouse and Office Buildings | Land sale revenue |  |  |  |
REVENUES |  |  |  |
Surface areas of land held | ft² |  | 143,000 |  | 143,000

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