Revenue from Contracts with Customers (Tables)

6 Months Ended

Oct. 31, 2020

Revenue from Contract with Customer [Abstract]

Summary of disaggregation of revenue

The following tables represents disaggregated revenue for the three and six months ended October 31, 2020 and 2019:

	Three Months Ended October 31,				Six Months Ended October 31,
	2020		2019		2020		2019
Pharmacology services	$	10,041	$	7,358	$	19,454	$	13,888
Personalized oncology services	37		232		150		412
Other	39		35		60		62
Total oncology services revenue	$	10,117	$	7,625	$	19,664	$	14,362