Note 17 - Subsequent Events (Details Textual) - USD ($) $ in Millions	Oct. 15, 2026	Mar. 13, 2026	Jan. 31, 2025	Jan. 31, 2024
Government Assistance, Award Amount		$ 8.0	$ 8.0	$ 7.3
Government Assistance, Asset, Current, Type [Extensible Enumeration]		Subawards [Member]	Subawards [Member]	Subawards [Member]
Subsequent Event [Member]
Government Assistance, Award Amount	$ 7.2
Government Assistance, Asset, Current, Type [Extensible Enumeration]	Subawards [Member]

Amount of government assistance awarded that comprises amount received, receivable, and to be received unless condition for government assistance is not met. Includes, but is not limited to, government grant, assistance, incentive, award, subsidy, and loan.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 832
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483507/832-10-50-3

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