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Accounts Receivable, Unbilled Services and Deferred Revenue (Tables)
 9 Months Ended
Jan. 31, 2024
Receivables [Abstract]  
Summary of accounts receivable, unbilled services, and advanced billings
Accounts receivable and unbilled services were as follows (in thousands)
January 31, 2024April 30, 2023
Accounts receivable$4,653 $3,843 
Unbilled services4,380 4,993 
Total accounts receivable and unbilled services9,033 8,836 
Less: Allowances(1,138)(825)
Total accounts receivable, net$7,895 $8,011 
Summary of advanced billings Deferred revenue was as follows (in thousands):
January 31, 2024April 30, 2023
Deferred revenue$13,329 $12,776