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Inventories - Additional Information (Detail) - USD ($) $ in Millions	Jan. 31, 2020	Jan. 31, 2019
Inventory Disclosure [Abstract]
Inventory demonstration equipment	$ 3.4	$ 2.1

X

- Definition

Inventory demonstration equipment.

+ References

No definition available.

+ Details

Name:	alot_InventoryDemonstrationEquipment
Namespace Prefix:	alot_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	us-gaap_InventoryDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration