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v3.23.2

Schedule of Revenue Recognizes From Operating Lease Arrangements (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Jul. 31, 2023 | Jul. 31, 2022
Product Information [Line Items] |  |
Revenue | $ 1,272 | $ 714
North And South America [Member] |  |
Product Information [Line Items] |  |
Revenue | 1,272 | 536
Asia and Australia [Member] |  |
Product Information [Line Items] |  |
Revenue |  | 178
Region [Member] |  |
Product Information [Line Items] |  |
Revenue | 1,272 | 714
WAMV [Member] |  |
Product Information [Line Items] |  |
Revenue | 703 | 337
Buoy [Member] |  |
Product Information [Line Items] |  |
Revenue | 250 | 12
Service [Member] |  |
Product Information [Line Items] |  |
Revenue | 319 | 365
Product [Member] |  |
Product Information [Line Items] |  |
Revenue | 1,272 | 714
Accounting Standards Update 2014-09 [Member] | North And South America [Member] |  |
Product Information [Line Items] |  |
Revenue | 1,029 | 522
Accounting Standards Update 2014-09 [Member] | Asia and Australia [Member] |  |
Product Information [Line Items] |  |
Revenue |  | 178
Accounting Standards Update 2014-09 [Member] | Region [Member] |  |
Product Information [Line Items] |  |
Revenue | 1,029 | 700
Accounting Standards Update 2014-09 [Member] | WAMV [Member] |  |
Product Information [Line Items] |  |
Revenue | 460 | 323
Accounting Standards Update 2014-09 [Member] | Buoy [Member] |  |
Product Information [Line Items] |  |
Revenue | 250 | 12
Accounting Standards Update 2014-09 [Member] | Service [Member] |  |
Product Information [Line Items] |  |
Revenue | 319 | 365
Accounting Standards Update 2014-09 [Member] | Product [Member] |  |
Product Information [Line Items] |  |
Revenue | 1,029 | 700
Accounting Standards Update 2016-02 [Member] | North And South America [Member] |  |
Product Information [Line Items] |  |
Revenue | 243 | 14
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 | 243 | 14
Accounting Standards Update 2016-02 [Member] | WAMV [Member] |  |
Product Information [Line Items] |  |
Revenue | 243 | 14
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 | $ 243 | $ 14

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