Revenue from Contracts with Customers (Tables)

6 Months Ended

Oct. 31, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following tables represents disaggregated revenue for the three and six months ended October 31, 2019 and 2018:

	Three Months Ended October 31,				Six Months Ended October 31,
	2019		2018		2019		2018
Pharmacology services	$	7,358	$	6,236	$	13,888	$	12,013
Personalized oncology services	232		249		412		609
Other	35		208		62		297
Total oncology services revenue	$	7,625	$	6,693	$	14,362	$	12,919