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v3.21.2

Discontinued Operations (Details) |  |  | 12 Months Ended
--- | --- | --- | ---
Feb. 22, 2019 USD ($) | Jun. 29, 2018 USD ($) | Apr. 30, 2021 USD ($) contract | Apr. 30, 2020 USD ($) | Apr. 30, 2019 USD ($)
Discontinued operations |  |  |  |  |
Amount of alleged damages | $ 6,500,000 |  |  |  |
Statement of operations |  |  |  |  |
Loss from discontinued operations, net of tax |  |  |  |  | $ (2,964,000)
(Loss) gain on sale of business, net of tax (benefit) expense of $(76) and $2,444 for the year ended April 30, 2020 and April 30, 2019, respectively |  |  |  | $ (265,000) | 8,490,000
Tax expense |  |  |  | (76,000) | 2,444,000
Net (loss) income from discontinued operations |  |  |  | (265,000) | 5,526,000
Other expense |  |  |  |  |
Discontinued operations |  |  |  |  |
Litigation reserve expense |  |  | $ 9,300,000 |  |
EES Business | Disposed of by sale |  |  |  |  |
Discontinued operations |  |  |  |  |
Cash consideration received |  | $ 31,994,000 |  |  |
Gain on sale of business |  | $ 11,420,000 |  |  | (486,000)
Working capital dispute |  |  |  | 922,000 |
Amounts recorded in the consolidated financial statements |  |  |  | 341,000 |
Statement of operations |  |  |  |  |
Tax expense |  |  |  | (76,000) | 2,444,000
EES Business | Disposed of by sale | Other income, net |  |  |  |  |
Statement of operations |  |  |  |  |
Net Sales |  |  | 38,000 | 551,000 | 2,758,000
EES Business | Discontinued Operations |  |  |  |  |
Statement of operations |  |  |  |  |
Net Sales |  |  |  |  | 4,256,000
Cost of sales |  |  |  |  | 5,097,000
Gross margin |  |  |  |  | (841,000)
Selling, general and administrative |  |  |  |  | 1,515,000
Research and development |  |  |  |  | 1,072,000
Other income, net |  |  |  |  | 1,000
Loss from discontinued operations before income taxes |  |  |  |  | (3,427,000)
Benefit for income taxes |  |  |  |  | (463,000)
Loss from discontinued operations, net of tax |  |  |  |  | (2,964,000)
(Loss) gain on sale of business, net of tax (benefit) expense of $(76) and $2,444 for the year ended April 30, 2020 and April 30, 2019, respectively |  |  |  | (265,000) | 8,490,000
Net (loss) income from discontinued operations |  |  |  | $ (265,000) | $ 5,526,000
Holdback | Disposed of by sale |  |  |  |  |
Discontinued operations |  |  |  |  |
Cash consideration received |  |  | $ 6,500,000 |  |
Number of remaining contracts | contract |  |  | 2 |  |

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