Note 17 - Redeemable Noncontrolling Interest - Schedule of Noncontrolling Interest (Details) - USD ($) $ in Thousands	12 Months Ended
Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2024
NRS [Member]
Net income of NRS attributable to the mezzanine equity’s noncontrolling interest	$ 765	$ 558	$ 429

Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.

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(19))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Name:	us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration