Stock-Based Compensation- Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2025	Jan. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options exercised (in shares)			9,000	26,253
Total intrinsic value of options exercised			$ 0	$ 40
Unrecognized compensation cost related to unvested stock option	$ 12,900		12,900
Unrecognized compensation cost related to unvested RSU	200		$ 200
Weighted average period for unrecognized compensation cost			1 year 7 months 17 days
Options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation expense	1,400	$ 1,300	$ 4,000	4,000
Income tax expense	0	69	600	0
RSUs
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation expense	$ 200	$ 300	$ 800	$ 700
Stock options vesting RSU (in Shares)			95,613	0
Total intrinsic value of RSU			$ 1,100	$ 0

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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