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Revenue from Contracts with Customers
 3 Months Ended
Jul. 31, 2024
Revenue from Contract with Customer [Abstract]  
Revenue from Contracts with Customers Revenue from Contracts with Customers
Oncology Services Revenue
The following table represents disaggregated revenue for the three months ended July 31, 2024 and 2023:
Three Months Ended
July 31,
 20242023
Pharmacology services$13,069 $11,860 
Other TOS revenue992 684 
Personalized oncology services— 17 
Total oncology services revenue$14,061 $12,561 
Other Translational Oncology Solutions ("TOS") revenue represents additional services provided to the Company's pharmaceutical and biotechnology customers, specifically flow cytometry services and software-as-a-service ("SaaS") provided via our Lumin Bioinformatics software ("Lumin").