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Note Receivable and Line of Credit Issued - Additional Information (Detail)		9 Months Ended
	Jan. 30, 2012 USD ($)	Oct. 31, 2015 USD ($) Installment	Jan. 31, 2015 USD ($)
Debt Disclosure [Abstract]
Net sale price	$ 1,000,000
Promissory note interest rate	3.75%
Interest commencement date		Jan. 30, 2013
Interest installments | Installment		16
Promissory note outstanding		$ 253,000
Revolving line of credit issued maximum		$ 600,000
Interest rate on outstanding credit balance		2.00%
Line of credit facility maturity date		Jan. 31, 2016
Extended revolving line of credit		$ 150,000	$ 173,000

X

- Definition

Initial sales price of operation sold received in the form of a Promissory Note.

+ References

No definition available.

+ Details

Name:	alot_DebtReceivedUponSaleOfOperation
Namespace Prefix:	alot_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The current portion of the line of credit issued to purchaser of the Label Line business.

+ References

No definition available.

+ Details

Name:	alot_LineOfCreditReceivableCurrent
Namespace Prefix:	alot_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Initial date that interest was to commence on the Note Receivable.

+ References

No definition available.

+ Details

Name:	alot_LoanReceivableDateConsideredForInterestPayments
Namespace Prefix:	alot_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Loan receivable interest rate stated percentage.

+ References

No definition available.

+ Details

Name:	alot_LoanReceivableInterestRateStatedPercentage
Namespace Prefix:	alot_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of installment payments of principal and interest to be made on the Note Receivable.

+ References

No definition available.

+ Details

Name:	alot_NumberOfInstallments
Namespace Prefix:	alot_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Revolving line of credit facility issued maximum capacity.

+ References

No definition available.

+ Details

Name:	alot_RevolvingLineOfCreditFacilityIssuedMaximumCapacity
Namespace Prefix:	alot_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

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

X

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The percentage points (also referred to as 'margin') added to the reference rate as stated in the loan agreement and used to compute the variable rate on the loans receivable. For instance, the loan agreement might state that the interest rate the borrower is obligated to pay is the London Interbank Offered Rate (LIBOR) plus three quarters (3/4) of a percentage point adjusted quarterly (each three months). LIBOR in this example is the index or reference rate, 3/4 percentage point is the margin, the reference rate plus the margin is the fully indexed rate. This element would be used to report separately the margin.

+ References

No definition available.

+ Details

Name:	us-gaap_LoansReceivableBasisSpreadOnVariableRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_NotesReceivableNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant