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Income Taxes - Projected Effective Tax Rate for Periods (Detail) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Aug. 03, 2013 | Aug. 03, 2013
Income Tax Disclosure [Abstract] |  |
Fiscal 2014 | 38.40% | 10.70%
Fiscal 2013 | 39.50% | 4.90%

X
- Definition Projected effective tax rate current year. + References No definition available. + Details
Name: | alot_ProjectedEffectiveTaxRateCurrentYear
Namespace Prefix: | alot_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Projected effective tax rate one year before. + References No definition available. + Details
Name: | alot_ProjectedEffectiveTaxRateOneYearBefore
Namespace Prefix: | alot_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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