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Discontinued Operations - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2015
Discontinued Operations And Disposal Groups [Abstract]
Operating assets sales agreement effective date	Aug. 14, 2014
Minimum lease period with option to purchase	1 year

X

- Definition

Minimum lease period with option to purchase.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

X

- Definition

Operating assets sales agreement effective date.

+ References

No definition available.

+ Details

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Namespace Prefix:	aeti_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Details

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Namespace Prefix:	us-gaap_
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