Annual report pursuant to Section 13 and 15(d)

Preferred Stock - Additional Information (Detail)

Preferred Stock - Additional Information (Detail) (USD $)	0 Months Ended		3 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended	0 Months Ended	3 Months Ended	0 Months Ended		5 Months Ended	0 Months Ended	6 Months Ended
	Dec. 01, 2014	Sep. 25, 2012	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 20, 2014	Dec. 31, 2012	May 15, 2013	Mar. 31, 2013	Aug. 22, 2013	Jun. 30, 2014	Dec. 01, 2014	Feb. 21, 2013	Jun. 30, 2014	May 14, 2013
Preferred Stock [Line Items]
Preferred stock authorized to issue				5,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, issued		600,000us-gaap_PreferredStockSharesIssued
Preferred stock, outstanding				0us-gaap_PreferredStockSharesOutstanding
Conversion price				$ 0.13
Convertible Preferred Stock, Total Shares Issued Upon Conversion		46,153,846
Ownership Percentage				73.00%rvlt_OwnershipPercentage
Convertible stock, Conversion of preferred stock		2	599,998
Convertible stock, Conversion of convertible securities	36,300,171us-gaap_ConversionOfStockSharesIssued1		46,153,692us-gaap_ConversionOfStockSharesIssued1
Common stock price in increased rate		$ 0.59rvlt_CommonStockIncreasedPricePerShare
Accrual of dividends on convertible preferred stock				$ 1,445,000rvlt_DividendsAccruedOnPreferredStock	$ 1,360,000rvlt_DividendsAccruedOnPreferredStock
Merger agreement, number of shares issued				8,035,826
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net					(6,990,000)
Embedded derivative, fair value of embedded derivative liability															8,600,000
Debt exchanged with stock, amount				3,736,000
Series B
Preferred Stock [Line Items]
Proceeds from issuance of convertible preferred stock		6,000,000
Proceeds from issuance of convertible preferred stock		5,195,000
Series C
Preferred Stock [Line Items]
Preferred stock, issued						10,000
Proceeds from issuance of convertible preferred stock						10,000,000
Series A Preferred Stock
Preferred Stock [Line Items]
Preferred stock authorized to issue				3,000
Preferred stock, issued				0
Preferred stock, outstanding				0
Series B Preferred Stock
Preferred Stock [Line Items]
Preferred stock authorized to issue				1,000,000
Preferred stock , Par value				$ 0.001
Proceeds from issuance of convertible preferred stock							5,195,000
Series C Convertible Preferred Stock
Preferred Stock [Line Items]
Preferred stock authorized to issue				25,000	25,000
Preferred stock, issued					10,000
Preferred stock, outstanding					10,000
Preferred stock , Par value				$ 0.001	$ 0.001
Preferred stock, cumulative dividends rate				10.00%
Preferred stock, stated value for cumulative dividends				$ 1,000
Accrual of dividends on convertible preferred stock					1,014,000		31,000
Series D Convertible Preferred Stock
Preferred Stock [Line Items]
Preferred stock authorized to issue				13,000
Preferred stock , Par value				$ 0.001
Conversion price								$ 0.6959
Convertible stock, Conversion of preferred stock								11,915
Convertible stock, Conversion of convertible securities								1,712,167
Preferred stock issued due to investment agreement			11,177				11,177
Merger agreement, number of shares issued									738
Liquidation preference per share			$ 100				$ 100
Series F Redeemable Convertible Preferred Stock
Preferred Stock [Line Items]
Preferred stock, issued										5,000
Proceeds from issuance of convertible preferred stock										5,000,000
Convertible redeemable preferred stock, shares authorized				10,000	10,000
Convertible redeemable preferred stock, par value				$ 0.001	$ 0.001
Series E Redeemable Convertible Preferred Stock
Preferred Stock [Line Items]
Convertible redeemable preferred stock, shares authorized				10,000	10,000
Convertible redeemable preferred stock, par value				$ 0.001	$ 0.001
Series G Redeemable Convertible Preferred Stock
Preferred Stock [Line Items]
Preferred stock authorized to issue				18,000
Preferred stock, issued											18,000			18,000
Preferred stock , Par value				$ 0.001
Conversion price				$ 2.30
Convertible stock, Conversion of convertible securities											5,404
Preferred stock, cumulative dividends rate												9.00%
Series G Redeemable Convertible Preferred Stock \| Dated April 17, 2014
Preferred Stock [Line Items]
Debt exchanged with stock, shares											10,956,000
Debt exchanged with stock, amount											10,956,000
Series G Redeemable Convertible Preferred Stock \| Dated February 25, 2014
Preferred Stock [Line Items]
Debt exchanged with stock, shares											1,640
Debt exchanged with stock, amount											1,640,085
Series E Convertible Preferred Stock
Preferred Stock [Line Items]
Preferred stock, issued													5,000
Proceeds from issuance of convertible preferred stock													5,000,000
Preferred stock, cumulative dividends rate													5.00%
Accrual of dividends on convertible preferred stock					218,000
Series F Convertible Preferred Stock
Preferred Stock [Line Items]
Preferred stock, cumulative dividends rate										7.00%
Accrual of dividends on convertible preferred stock					$ 129,000									$ 0
Exchange agreement, shares received											5,000