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Income Taxes - Projected Effective Tax Rate for Periods (Detail) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Aug. 02, 2014 | Aug. 02, 2014
Income Tax Disclosure [Abstract] |  |
Fiscal 2015 | 36.10% | 33.00%
Fiscal 2014 | 38.40% | 10.70%

X
- Definition Effective tax rate for the current year based on projected effective tax rate for the full year. + References No definition available. + Details
Name: | alot_EffectiveTaxRateCurrentYear
Namespace Prefix: | alot_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Effective tax rate for the prior year based on projected effective tax rate for the full year. + References No definition available. + Details
Name: | alot_EffectiveTaxRatePriorYear
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