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v3.23.3

Schedule of Revenue Recognizes From Operating Lease Arrangements (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 31, 2023 | Oct. 31, 2022 | Oct. 31, 2023 | Oct. 31, 2022
Product Information [Line Items] |  |  |  |
Revenue | $ 889 | $ 303 | $ 2,161 | $ 1,017
North And South America [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 889 | 249 | 2,161 | 785
Asia and Australia [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue |  | 54 |  | 232
Region [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 889 | 303 | 2,161 | 1,017
WAMV [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 347 | 98 | 1,049 | 435
Buoy [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 380 | 38 | 630 | 50
Service [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 162 | 167 | 482 | 532
Product [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 889 | 303 | 2,161 | 1,017
Accounting Standards Update 2014-09 [Member] | North And South America [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 623 | 249 | 1,652 | 770
Accounting Standards Update 2014-09 [Member] | Asia and Australia [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue |  | 54 |  | 232
Accounting Standards Update 2014-09 [Member] | Region [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 623 | 303 | 1,652 | 1,002
Accounting Standards Update 2014-09 [Member] | WAMV [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 81 | 98 | 540 | 420
Accounting Standards Update 2014-09 [Member] | Buoy [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 380 | 38 | 630 | 50
Accounting Standards Update 2014-09 [Member] | Service [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 162 | 167 | 482 | 532
Accounting Standards Update 2014-09 [Member] | Product [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 623 | 303 | 1,652 | 1,002
Accounting Standards Update 2016-02 [Member] | North And South America [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 266 |  | 509 | 15
Accounting Standards Update 2016-02 [Member] | Asia and Australia [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue |  |  |  |
Accounting Standards Update 2016-02 [Member] | Region [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 266 |  | 509 | 15
Accounting Standards Update 2016-02 [Member] | WAMV [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | 266 |  | 509 | 15
Accounting Standards Update 2016-02 [Member] | Buoy [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue |  |  |  |
Accounting Standards Update 2016-02 [Member] | Service [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue |  |  |  |
Accounting Standards Update 2016-02 [Member] | Product [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Revenue | $ 266 |  | $ 509 | $ 15

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