Shareholders' Equity (Details 3)	3 Months Ended
May 31, 2018 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Stock Warrants Outstanding \| shares	9,486,362
Stock Warrants Exercisable \| shares	9,486,362
1.40 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices	$ 1.40
Stock Warrants Outstanding \| shares	742,857
Stock Warrants Exercisable \| shares	742,857
Weighted-Average Remaining Contractual Life	58 months
Weighted-Average Exercise Price of Warrants Outstanding	$ 1.40
Weighted-Average Exercise Price of Warrants Exercisable	1.40
Intrinsic Value	0.00
$1.40 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices	$ 1.40
Stock Warrants Outstanding \| shares	5,154,646
Stock Warrants Exercisable \| shares	5,154,646
Weighted-Average Remaining Contractual Life	57 months
Weighted-Average Exercise Price of Warrants Outstanding	$ 1.40
Weighted-Average Exercise Price of Warrants Exercisable	1.40
Intrinsic Value	$ 0.00
$0.70-4.55 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Stock Warrants Outstanding \| shares	2,783,002
Stock Warrants Exercisable \| shares	2,783,002
Weighted-Average Remaining Contractual Life	34 months
Weighted-Average Exercise Price of Warrants Outstanding	$ 2.85
Weighted-Average Exercise Price of Warrants Exercisable	2.85
Intrinsic Value	0.00
$0.70-4.55 [Member] \| Maximum [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices	4.55
$0.70-4.55 [Member] \| Minimum [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices	0.70
5.25 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices	$ 5.25
Stock Warrants Outstanding \| shares	154,666
Stock Warrants Exercisable \| shares	154,666
Weighted-Average Remaining Contractual Life	33 months
Weighted-Average Exercise Price of Warrants Outstanding	$ 5.25
Weighted-Average Exercise Price of Warrants Exercisable	5.25
Intrinsic Value	0.00
$5.25 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices	$ 5.25
Stock Warrants Outstanding \| shares	651,191
Stock Warrants Exercisable \| shares	651,191
Weighted-Average Remaining Contractual Life	20 months
Weighted-Average Exercise Price of Warrants Outstanding	$ 5.25
Weighted-Average Exercise Price of Warrants Exercisable	$ 5.25

Share based compensation shares authorized under exercise price range number of stock warrants exercisable.

No definition available.

Name:	ausi_ShareBasedCompensationSharesAuthorizedUnderExercisePriceRangeNumberOfStockWarrantsExercisable
Namespace Prefix:	ausi_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

share-based compensation shares authorized under warrants exercisable weighted average exercise price.

+ References

No definition available.

+ Details

Name:	ausi_ShareBasedCompensationSharesAuthorizedUnderWarrantsExercisableWeightedAverageExercisePrice
Namespace Prefix:	ausi_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Share based compensation shares authorized under warrants outstanding weighted average exercise price.

+ References

No definition available.

+ Details

Name:	ausi_ShareBasedCompensationSharesAuthorizedUnderWarrantsOutstandingWeightedAverageExercisePrice
Namespace Prefix:	ausi_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Per share weighted average intrinsic value of equity-based compensation awards not vested. Excludes stock and unit options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedIntrinsicValue
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=ausi_RangeOfExercisePricesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=ausi_RangeOfExercisePricesOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=ausi_RangeOfExercisePricesTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=ausi_RangeOfExercisePricesThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=ausi_RangeOfExercisesPriceFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: