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Note 7 - Income Taxes (Details Textual) $ in Thousands	12 Months Ended
	Mar. 31, 2025 USD ($)
Operating Loss Carryforwards	$ 3,600
Reserve for Uncertain Tax Positions	0
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	2,300
Expiration Commencing, Tax Year 2034-2037 [Member]
Operating Loss Carryforwards	900
NOL Generated During 2017-2024 [Member]
Operating Loss Carryforwards	$ 2,700

X

- Definition

The amount of money reserved for uncertain tax positions.

+ References

No definition available.

+ Details

Name:	amix_ReserveForUncertainTaxPositions
Namespace Prefix:	amix_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-3

+ Details

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

X

- Definition

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

+ Details

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

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: