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Provision for Income Taxes - Components of Provision (Benefit) for Income Taxes (Details) - USD ($) | 12 Months Ended
--- | ---
Apr. 30, 2020 | Apr. 30, 2019
Federal |  |
Current |  | $ 0
Total |  | 0
State |  |
Current | $ 3,000 | 2,000
Total | 3,000 | 2,000
Foreign |  |
Current | 127,000 | 101,000
Total | 127,000 | 101,000
Current, total | 130,000 | 103,000
Provision for income tax | $ 130,000 | $ 103,000

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