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Revenue from Contracts with Customers (Tables) | 12 Months Ended
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Apr. 30, 2020
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following table represents disaggregated revenue for the twelve months ended April 30, 2020 and 2019:
| Year Ended April 30, |
| 2020 |  | 2019 |
Pharmacology services | $ | 31,262 |  |  | $ | 25,484 |  |
Personalized oncology services | 790 |  |  | 1,277 |  |
Other TOS revenue | 71 |  |  | 306 |  |
Total oncology services revenue | $ | 32,123 |  |  | $ | 27,067 |  |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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