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Note 5 - Leases (Tables)

3 Months Ended

Dec. 31, 2025

Notes Tables

Schedule of Operating Lease Right of Use Assets Lease Liabilities and Other Supplemental Information [Table Text Block]

		December 31, 2025				September 30, 2025
Weighted average remaining lease term		1.6 years				1.8 years
Weighted average discount rate			6.15	%			6.15	%

Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]

		December 31, 2025
		(In thousands)
Remainder of fiscal year 2026		$	297
Fiscal year 2027			338
Total undiscounted cash flows			635
Present value discount			(29	)
Total operating lease liabilities		$	606

X

- Definition

Tabular disclosure for lessee's operating leases.

+ References

No definition available.

+ Details

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Namespace Prefix:	hnna_
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X

- Definition

Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

+ Details

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Period Type:	duration

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- References

No definition available.

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Data Type:	xbrli:stringItemType
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