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Contractual Obligations (Details Textual) (USD $) | 12 Months Ended
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Jan. 31, 2013 | Jan. 31, 2012
Contractual Obligations (Textual) [Abstract] |  |
Rent and lease expenses | $ 607,000 | $ 706,000

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- Details
Name: | alot_ContractualObligationsTextualAbstract
Namespace Prefix: | alot_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Rental expense incurred for leased assets including furniture and equipment which has not been recognized in costs and expenses applicable to sales and revenues; for example, cost of goods sold or other operating costs and expenses. + References No definition available. + Details
Name: | us-gaap_LeaseAndRentalExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration