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Contractual Obligations (Details Textual) (USD $)	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Contractual Obligations (Textual) [Abstract]
Rent and lease expenses	$ 607,000	$ 706,000

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- Details

Name:	alot_ContractualObligationsTextualAbstract
Namespace Prefix:	alot_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

Rental expense incurred for leased assets including furniture and equipment which has not been recognized in costs and expenses applicable to sales and revenues; for example, cost of goods sold or other operating costs and expenses.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration