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Reconciliation of Tax Computed at Statutory Federal Rate to Income Tax Expense in Statements of Operations (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Schedule of Effective Tax Rate Reconciliation [Line Items] | |||
| Tax benefit at statutory federal rate | $ (3,988)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | $ (5,719)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | $ (2,916)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate |
| Deferred state tax benefit | (383)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | (258)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | (618)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes |
| Change in valuation allowance | 4,982us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | (10,446)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | 2,810us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance |
| Tax benefit of acquisition | (6,550)rvlt_IncomeTaxReconciliationAcquisitionCosts | ||
| Goodwill impairment | 676us-gaap_IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses | ||
| Adjustment to net operating loss carryforwards | (120)us-gaap_IncomeTaxReconciliationOtherAdjustments | 13,828us-gaap_IncomeTaxReconciliationOtherAdjustments | 41us-gaap_IncomeTaxReconciliationOtherAdjustments |
| Non-deductible expenses | 160us-gaap_IncomeTaxReconciliationNondeductibleExpense | 2,595us-gaap_IncomeTaxReconciliationNondeductibleExpense | 7us-gaap_IncomeTaxReconciliationNondeductibleExpense |
| Impact of rate change | (651)rvlt_IncomeTaxReconciliationDeferredImpactRateChange | ||
| Income tax benefit | $ (6,550)us-gaap_IncomeTaxExpenseBenefit | ||
| Tax benefit at statutory federal rate | (34.00%)us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | (34.00%)us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | (34.00%)us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate |
| Deferred state tax benefit | (3.30%)us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes | (1.50%)us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes | (7.20%)us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes |
| Change in valuation allowance | 42.50%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance | (62.10%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance | 32.80%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance |
| Tax benefit of acquisition | (55.80%)rvlt_EffectiveIncomeTaxRateReconciliationAcquisitions | ||
| Goodwill impairment | 7.90%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses | ||
| Adjustment to net operating loss carryforwards | (1.00%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments | 82.20%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments | 0.50%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments |
| Non-deductible expenses | 1.40%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense | 15.40%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense | 0.00%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense |
| Impact of rate change | (5.60%)rvlt_EffectiveIncomeTaxRateReconciliationChangeInTaxRates | ||
| Income tax benefit | (55.80%)us-gaap_EffectiveIncomeTaxRateContinuingOperations | ||
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- Definition
Effective Income Tax Rate Reconciliation Acquisitions No definition available.
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- Definition
Effective Income Tax Rate Reconciliation, Change in Tax Rates No definition available.
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- Definition
Income Tax Reconciliation Acquisition Costs No definition available.
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- Definition
Income Tax Reconciliation Deferred Impact Rate Change No definition available.
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- Details
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- Definition
Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to impairment loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible impairment loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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