XML 63 R45.htm IDEA: XBRL DOCUMENT v2.4.0.8

Securities Available for Sale - Additional Information (Detail)	6 Months Ended
	Aug. 03, 2013
Schedule of Held-to-maturity Securities [Line Items]
Short-term investment securities have original maturities greater than (days)	90 days
Maximum [Member]
Schedule of Held-to-maturity Securities [Line Items]
Anticipated maturity dates range	34 months
Minimum [Member]
Schedule of Held-to-maturity Securities [Line Items]
Anticipated maturity dates range	1 month

X

- Definition

Anticipated maturity date.

+ References

No definition available.

+ Details

Name:	alot_AnticipatedMaturityDate
Namespace Prefix:	alot_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Short term investment securities original maturity greater than ninety days.

+ References

No definition available.

+ Details

Name:	alot_ShortTermInvestmentSecuritiesOriginalMaturityGreaterThanNinetyDays
Namespace Prefix:	alot_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration