INVESTMENTS AND FAIR VALUE MEASUREMENTS - Noncurrent Investments (Details) - USD ($) $ in Thousands	Jan. 31, 2026	Apr. 30, 2025
INVESTMENTS AND FAIR VALUE MEASUREMENTS
Corporate bonds	$ 0	$ 13,880
Total Investments - noncurrent	$ 0	$ 13,880

The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Name:	us-gaap_LongTermInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant