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Commitments and Contingencies - Additional Information (Detail) (USD $) | 1 Months Ended | 3 Months Ended
--- | --- | ---
Jan. 31, 2014 | May 03, 2014 | May 04, 2013
Commitments And Contingencies Disclosure [Abstract] |  |  |
Estimated costs associated with the replacement program |  |  | $ 672,000
Replacement costs charged against the reserve |  | 221,000 |
Other Accrued Expenses |  | 451,000 |
Cash received from supplier for recovery | $ 450,000 |  |
Period of receiving lower product prices |  | 3 years |

X
- Definition Period to receive lower product prices from supplier. + References No definition available. + Details
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Namespace Prefix: | alot_
Data Type: | xbrli:durationItemType
Balance Type: | na
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- Definition Product Replacement Cost Charged Against Reserve + References No definition available. + Details
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Namespace Prefix: | alot_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Cost incurred to replace certain component parts of items manufactured due to non-compliant parts provided by a supplier and used in the manufacture of products. + References No definition available. + Details
Name: | alot_ProductReplacementRelatedCosts
Namespace Prefix: | alot_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Product replacement reserve. + References No definition available. + Details
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Namespace Prefix: | alot_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Settlement amount received from supplier for recovery of cost and expenses. + References No definition available. + Details
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Namespace Prefix: | alot_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: | us-gaap_
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