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Leases - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013 sqft
Leases [Abstract]
Lease covered area			13,000aeti_AreaOfLeasedOfficeSpace
Term of lease	64 months
Lease expiration year		2016
Rental expense		$ 0.4us-gaap_LeaseAndRentalExpense	$ 0.3us-gaap_LeaseAndRentalExpense

X

- Definition

Area of leased office space.

+ References

No definition available.

+ Details

Name:	aeti_AreaOfLeasedOfficeSpace
Namespace Prefix:	aeti_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Lease expiration year.

+ References

No definition available.

+ Details

Name:	aeti_LeaseExpirationYear
Namespace Prefix:	aeti_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

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

X

- Details

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

X

- Definition

Term of the lessee's leasing arrangement, 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_LesseeLeasingArrangementsOperatingLeasesTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration