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Income Taxes (Tables) | 3 Months Ended
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Apr. 28, 2018
Income Tax Disclosure [Abstract] |
Projected Effective Tax Rate for Periods | The Company’s effective tax rates for the period are as follows:
|  | Three Months Ended |
Fiscal 2019 |  |  | 18.2 | %
Fiscal 2018 |  |  | 22.3 | %

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- Definition Schedule of the effective tax rate for the period based on the projected effective tax rate for full year. + References No definition available. + Details
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Namespace Prefix: | alot_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration