v3.25.4

Note 4 - Fair Value Measurement and Fair Value of Financial Instruments - Warrant Liabilities Inputs and Assumptions (Details)	Dec. 31, 2025	Sep. 30, 2025
Montage Warrant [Member] | Measurement Input, Price Volatility [Member]
Warrants and rights, measurement input	0.687	0.721
Montage Warrant [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and rights, measurement input	0.035	0.037
Montage Warrant [Member] | Measurement Input, Share Price [Member]
Warrants and rights, measurement input	0.83	1.32
Series D Warrants [Member] | Measurement Input, Price Volatility [Member]
Warrants and rights, measurement input		0.51
Series D Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and rights, measurement input		0.048
Series D Warrants [Member] | Measurement Input, Share Price [Member]
Warrants and rights, measurement input		1.32

X

- Definition

Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

+ References

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

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

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: