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Government Grants - Additional Information (Detail) - USD ($) | 3 Months Ended
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Apr. 30, 2026 | Apr. 30, 2025
Government Grants [Abstract] |  |
Short and long-term grant deferred revenue | $ 900,000 |
Grant revenue recognized included in depreciation expense | 100,000 | $ 100,000
Grant revenue recognized included in selling and marketing expense | 100,000 |
Contingencies associated with the government grants | $ 0 |

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- Definition Contingencies associated with government grants. + References No definition available. + Details
Name: | alot_ContingenciesAssociatedWithGovernmentGrants
Namespace Prefix: | alot_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Government grants. + References No definition available. + Details
Name: | alot_GovernmentGrantsAbstract
Namespace Prefix: | alot_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Grant deferred revenue current and noncurrent + References No definition available. + Details
Name: | alot_GrantDeferredRevenueCurrentAndNoncurrent
Namespace Prefix: | alot_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Grant Revenue Recognized Included in Depreciation Expense + References No definition available. + Details
Name: | alot_GrantRevenueRecognizedIncludedInDepreciationExpense
Namespace Prefix: | alot_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Grant revenue recognized included in selling and marketing expense. + References No definition available. + Details
Name: | alot_GrantRevenueRecognizedIncludedInSellingAndMarketingExpense
Namespace Prefix: | alot_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration