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Note Receivable and Revolving Line of Credit Issued - Additional Information (Detail) (USD $) | 0 Months Ended | 12 Months Ended | 1 Months Ended
--- | --- | --- | ---
Jan. 30, 2012 | Jan. 31, 2015 Installment | Feb. 28, 2015
Note Receivable And Line Of Credit Issued [Line Items] |  |  |
Net sale price | $ 1,000,000 alot_DebtReceivedUponSaleOfOperation |  |
Promissory note interest rate | 3.75%alot_LoanReceivableInterestRateStatedPercentage |  |
Interest commencement date |  | Jan. 30, 2013 |
Interest installments |  | 16 alot_NumberOfInstallments |
Promissory note outstanding |  | 511,000 us-gaap_NotesReceivableNet |
Revolving line of credit |  | 600,000 alot_RevolvingLineOfCreditFacilityIssuedMaximumCapacity |
Interest rate on outstanding credit balance |  | 2.00%us-gaap_LoansReceivableBasisSpreadOnVariableRate |
Line of credit facility maturity date |  | Jan. 31, 2015 |
Extended revolving line of credit |  | $ 173,000 alot_RevolvingLineOfCreditFacilityIssuedAmountOutstanding |
Line of credit issued initial term |  | 1 year |
Revolving Credit Facility [Member] |  |  |
Note Receivable And Line Of Credit Issued [Line Items] |  |  |
Promissory note interest rate |  | 5.25%alot_LoanReceivableInterestRateStatedPercentage / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |
Subsequent Event [Member] |  |  |
Note Receivable And Line Of Credit Issued [Line Items] |  |  |
Line of credit facility maturity date |  |  | Jan. 31, 2016

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- 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

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- 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

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- 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
- Details
Name: | alot_NoteReceivableAndLineOfCreditIssuedLineItems
Namespace Prefix: | alot_
Data Type: | xbrli:stringItemType
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: | duration

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- Definition Revolving line of credit facility issued amount outstanding. + References No definition available. + Details
Name: | alot_RevolvingLineOfCreditFacilityIssuedAmountOutstanding
Namespace Prefix: | alot_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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

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- 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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- Definition Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityExpirationPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- 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

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- 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Article 5 + Details
Name: | us-gaap_NotesReceivableNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |