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Inventories (Details Textual) (USD $) | Jan. 31, 2013 | Jan. 31, 2012
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Inventories (Textual) [Abstract] |  |
Inventory demonstration equipment | $ 812,000 | $ 953,000

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- Details
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Namespace Prefix: | alot_
Data Type: | xbrli:stringItemType
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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
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