Annual report pursuant to Section 13 and 15(d)

Risk Concentrations - Additional Information (Detail)

v2.4.1.9
Risk Concentrations - Additional Information (Detail)
 12 Months Ended
Dec. 31, 2013
Vendor
Dec. 31, 2012
Vendor
Concentration Risk [Line Items]    
Percentage of revenue from a group of related customer 31.00%rvlt_EntityWideRevenueMajorCustomerPercentageOfTotalRevenues  
Number of major Suppliers 2rvlt_NumberOfMajorSuppliers 4rvlt_NumberOfMajorSuppliers
Supplier One    
Concentration Risk [Line Items]    
Purchases from major suppliers 14.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_CounterpartyNameAxis
= rvlt_SupplierOneMember 		18.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_CounterpartyNameAxis
= rvlt_SupplierOneMember
Supplier Two    
Concentration Risk [Line Items]    
Purchases from major suppliers 10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_CounterpartyNameAxis
= rvlt_SupplierTwoMember 		15.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_CounterpartyNameAxis
= rvlt_SupplierTwoMember
Supplier Three    
Concentration Risk [Line Items]    
Purchases from major suppliers   14.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_CounterpartyNameAxis
= rvlt_SupplierThreeMember
Supplier Four    
Concentration Risk [Line Items]    
Purchases from major suppliers   12.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_CounterpartyNameAxis
= rvlt_SupplierFourMember