Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Detail)

v2.4.1.9
Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
 0 Months Ended 1 Months Ended 3 Months Ended
Dec. 01, 2014
Dec. 31, 2014
Aug. 31, 2014
Mar. 31, 2015
Segment
Mar. 31, 2014
Apr. 20, 2015
Aug. 30, 2014
Dec. 31, 2013
Apr. 30, 2015
Summary Of Significant Accounting Policies [Line Items]                  
Number of reportable segments       2us-gaap_NumberOfReportableSegments          
Cash and cash equivalents   $ 6,033,000us-gaap_CashAndCashEquivalentsAtCarryingValue   $ 1,635,000us-gaap_CashAndCashEquivalentsAtCarryingValue $ 1,008,000us-gaap_CashAndCashEquivalentsAtCarryingValue     $ 1,757,000us-gaap_CashAndCashEquivalentsAtCarryingValue  
Cash flow from operations       7,200,000us-gaap_NetCashProvidedByUsedInOperatingActivities 3,943,000us-gaap_NetCashProvidedByUsedInOperatingActivities        
Working capital   18,800,000rvlt_WorkingCapitalNet   26,400,000rvlt_WorkingCapitalNet          
Line of credit facility, maximum borrowing amount     25,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity       25,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity    
Borrowing capacity           5,400,000us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity      
Debt instrument agreement period     3 years            
Bank loan payable       12,200,000us-gaap_LongTermLoansFromBank          
Convertible stock, Conversion of convertible securities 36,300,171us-gaap_ConversionOfStockSharesIssued1 36,300,171us-gaap_ConversionOfStockSharesIssued1              
Revenue from sales taxes       700,000us-gaap_ExciseAndSalesTaxes          
Maturity of temporary cash investments       3 months          
Business acquisition, number of shares to be issued       8,035,826us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued          
Subsequent Event                  
Summary Of Significant Accounting Policies [Line Items]                  
Guaranteed additional borrowing capacity                 5,000,000rvlt_LineOfCreditFacilitySubLimitGuaranteeMaximumBorrowingCapacity
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Bank loan payable           13,600,000us-gaap_LongTermLoansFromBank
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= us-gaap_SubsequentEventMember 		     
Minimum                  
Summary Of Significant Accounting Policies [Line Items]                  
Product warranty       1 year          
Intangible assets estimate useful life       1 year          
Maximum                  
Summary Of Significant Accounting Policies [Line Items]                  
Product warranty       10 years          
Intangible assets estimate useful life       17 years 6 months          
Contingent payment of stock issued for acquisitions of businesses       $ 6,200,000us-gaap_StockIssuedDuringPeriodValueAcquisitions
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= us-gaap_MaximumMember