Revenue from Contracts with Customers (Tables)

12 Months Ended

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