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Inventories - Additional Information (Detail) (USD $)	Jan. 31, 2015	Jan. 31, 2014
Inventory Disclosure [Abstract]
Inventory demonstration equipment	$ 1,030,000alot_InventoryDemonstrationEquipment	$ 767,000alot_InventoryDemonstrationEquipment

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- 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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- Details

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