Annual report pursuant to Section 13 and 15(d)

Common Stock for Issuance Reserve (Detail)

v2.4.1.9
Common Stock for Issuance Reserve (Detail)
Dec. 31, 2014
Schedule of Capitalization, Equity [Line Items]  
Total reserved shares 10,026,466us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Shares to be Issued for Acquisitions  
Schedule of Capitalization, Equity [Line Items]  
Total reserved shares 8,307,398us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis
= rvlt_SharesIssuedAcquisitionsAndInvestmentsMember
Shares Subject to Warrants  
Schedule of Capitalization, Equity [Line Items]  
Total reserved shares 289,187us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_WarrantMember
Employee Stock Options and Restricted Stock  
Schedule of Capitalization, Equity [Line Items]  
Total reserved shares 1,429,881us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember