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Other Current Assets (Tables) | 3 Months Ended
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Jul. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Schedule of Other Current Assets | Other current assets consist of the following at July 31, 2020 and April 30, 2020:
|  | July 31, 2020 |  |  | April 30, 2020 |
|  | (in thousands) |
Deposits |  | $ | 9 |  |  | $ | 60 |
Other receivables |  |  | 2 |  |  |  | 2 |
Prepaid insurance |  |  | 143 |  |  |  | 124 |
Prepaid offering costs |  |  | 81 |  |  |  | 275 |
Prepaid expenses- other |  |  | 212 |  |  |  | 127 |
|  | $ | 447 |  |  | $ | 588 |

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- Definition Tabular disclosure of the carrying amounts of other current assets. + References No definition available. + Details
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