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Other Non-Current Assets - Schedule of Other Non-Current Assets (Details) - Staffing 360 Solutions, Inc. [Member] - USD ($) $ in Thousands	Sep. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
Other Non-Current Assets - Schedule of Other Non-Current Assets (Details) [Line Items]
Collateral associated with workers’ compensation insurance		$ 5,570	$ 6,027
Other non-current assets		22	1,762
Total	$ 4,761	$ 5,592	$ 7,789

X

- Definition

Collateral associated with workers compensation insurance non current.

+ References

No definition available.

+ Details

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Namespace Prefix:	altn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

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X

- Definition

Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer.

+ References

No definition available.

+ Details

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

X

- Definition

Amount of noncurrent assets classified as other.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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- Details

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