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v2.4.0.8

Fair Value - Additional Information (Detail) (Maximum [Member]) | 3 Months Ended
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May 03, 2014
Maximum [Member] |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
Cash and cash equivalents, maturity period | 90 days

X
- Definition Cash And Cash Equivalents Maturity Period + References No definition available. + Details
Name: | alot_CashAndCashEquivalentsMaturityPeriod
Namespace Prefix: | alot_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration