Area of leased office space.

No definition available.

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

- 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

- Definition

Number of cities in which offices and facilities were leased.

+ References

No definition available.

+ Details

Name:	aeti_NumberOfCitiesInWhichOfficesAndFacilitiesWereLeased
Namespace Prefix:	aeti_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- 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

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

+ Details

Name:	us-gaap_LesseeOperatingLeaseTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
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_OperatingLeasedAssetsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	dei_LegalEntityAxis=aeti_MAndIElectricBrazilSistemasServiciosEmEnergiaLTDAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Leases - Additional Information (Detail) $ in Millions	12 Months Ended
Leases - Additional Information (Detail) $ in Millions	Dec. 31, 2018 USD ($) City	Mar. 31, 2014	Dec. 31, 2013 ft²
Operating Leased Assets [Line Items]
Office lease covered area \| ft²			13,000
Term of lease		64 months
Lease expiration year	2021
M&I Brazil
Operating Leased Assets [Line Items]
Lease expiration year	2022
Number of cities in which offices and facilities were leased \| City	3
Operating leases, rent expense \| $	$ 0.2