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