Note 12 - Fair Value Measurements - Recurring Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024
Derivative warrant liabilities	$ 9,402	$ 12,745
Financial liabilities, fair value	9,402	12,745
Fair Value, Inputs, Level 1 [Member]
Derivative warrant liabilities	0	0
Financial liabilities, fair value	0	0
Fair Value, Inputs, Level 2 [Member]
Derivative warrant liabilities	0	0
Financial liabilities, fair value	0	0
Fair Value, Inputs, Level 3 [Member]
Derivative warrant liabilities	9,402	12,745
Financial liabilities, fair value	$ 9,402	$ 12,745

Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2E
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant