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Commitment and Contingencies (Details) - USD ($)	3 Months Ended
	Jul. 31, 2025	Jul. 31, 2024
Commitments and Contingencies [Line Items]
Royalty expense	$ 39,000	$ 81,000
Minimum
Commitments and Contingencies [Line Items]
Royalty fee per tumor sample	$ 0
Royalty payment, as percent of contract price	2.00%
Maximum
Commitments and Contingencies [Line Items]
Royalty fee per tumor sample	$ 30,000
Royalty payment, as percent of contract price	20.00%

X

- Definition

Collaboration Arrangement Royalty Fee

+ References

No definition available.

+ Details

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- Definition

Collaboration Arrangement, Royalty Fee, Percent Of Contract Price

+ References

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- Definition

Commitments and Contingencies [Line Items]

+ References

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- Definition

Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

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