Purchase Price Allocation (Parenthetical) (Detail)

v3.7.0.1

Purchase Price Allocation (Parenthetical) (Detail) - USD ($) $ in Millions		12 Months Ended
	May 06, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	May 01, 2016	Aug. 05, 2015
Business Acquisition [Line Items]
Contingent consideration					$ 5.0
Contingent consideration as percentage of projected EBITDA			10.00%	10.00%
TNT
Business Acquisition [Line Items]
Working capital adjustment	$ 0.6
Increase in goodwill related to adjustments in working capital	$ 1.6
Energy Source \| Common Stock
Business Acquisition [Line Items]
Business acquisition, number of shares issued value						$ 10.0
Scenario, forecast
Business Acquisition [Line Items]
Contingent consideration as percentage of projected EBITDA		10.00%

- Definition

Business Combination Contingent Consideration Payment As Percentage of Projected EBITDA

+ References

No definition available.

+ Details

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Namespace Prefix:	rvlt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Business Combination, Working Capital Adjustment

+ References

No definition available.

+ Details

Name:	rvlt_BusinessCombinationWorkingCapitalAdjustment
Namespace Prefix:	rvlt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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_BusinessAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
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Period Type:

- Details

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Namespace Prefix:
Data Type:	na
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Period Type:

- Details

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- Details

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Annual report pursuant to Section 13 and 15(d)

Purchase Price Allocation (Parenthetical) (Detail)