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Income Taxes (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Current      
Federal $ 0us-gaap_CurrentFederalTaxExpenseBenefit $ 0us-gaap_CurrentFederalTaxExpenseBenefit $ 0us-gaap_CurrentFederalTaxExpenseBenefit
State 0us-gaap_CurrentStateAndLocalTaxExpenseBenefit 0us-gaap_CurrentStateAndLocalTaxExpenseBenefit 0us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Total current 0us-gaap_CurrentIncomeTaxExpenseBenefit 0us-gaap_CurrentIncomeTaxExpenseBenefit 0us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred      
Federal 0us-gaap_DeferredFederalIncomeTaxExpenseBenefit 0us-gaap_DeferredFederalIncomeTaxExpenseBenefit 0us-gaap_DeferredFederalIncomeTaxExpenseBenefit
State 0us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit 0us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit 0us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Total deferred 0us-gaap_DeferredIncomeTaxesAndTaxCredits 0us-gaap_DeferredIncomeTaxesAndTaxCredits 0us-gaap_DeferredIncomeTaxesAndTaxCredits
Total income tax expense (benefit) 0us-gaap_IncomeTaxExpenseBenefit 0us-gaap_IncomeTaxExpenseBenefit 0us-gaap_IncomeTaxExpenseBenefit
Deferred income tax assets      
Tax over book basis of land inventory 15,085,000us-gaap_DeferredTaxAssetsInventory 15,699,000us-gaap_DeferredTaxAssetsInventory  
Unrecoverable land development costs 6,222,000avhi_DeferredTaxAssetsUnrecoverableLandDevelopmentCosts 6,728,000avhi_DeferredTaxAssetsUnrecoverableLandDevelopmentCosts  
Executive incentive compensation 1,338,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost 1,086,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost  
Net operating loss carry forward 61,128,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards 50,136,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards  
Impairment charges 55,529,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses 67,453,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses  
Other 4,061,000us-gaap_DeferredTaxAssetsOther 4,257,000us-gaap_DeferredTaxAssetsOther  
Total deferred income tax assets 143,363,000us-gaap_DeferredTaxAssetsGross 145,359,000us-gaap_DeferredTaxAssetsGross  
Valuation allowance for deferred tax assets (129,862,000)us-gaap_DeferredTaxAssetsValuationAllowance (130,232,000)us-gaap_DeferredTaxAssetsValuationAllowance  
Net deferred income tax assets 13,501,000us-gaap_DeferredTaxAssetsNet 15,127,000us-gaap_DeferredTaxAssetsNet  
Deferred Tax Assets, State Taxes (3,412,000)us-gaap_DeferredTaxAssetsStateTaxes (4,344,000)us-gaap_DeferredTaxAssetsStateTaxes  
Deferred income tax liabilities      
Book over tax income recognized on sale of the Ocala Property (7,751,000)avhi_DeferredTaxLiabilityBookOverTaxIncomeRecognizedOnSaleOfProperty (8,870,000)avhi_DeferredTaxLiabilityBookOverTaxIncomeRecognizedOnSaleOfProperty  
Tax over book on 4.50% Convertible Notes (960,000)us-gaap_DeferredTaxLiabilitiesFinancingArrangements (621,000)us-gaap_DeferredTaxLiabilitiesFinancingArrangements  
Book over tax basis of depreciable assets (1,378,000)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment (1,292,000)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment  
Total deferred income tax liabilities (13,501,000)us-gaap_DeferredIncomeTaxLiabilities (15,127,000)us-gaap_DeferredIncomeTaxLiabilities  
Net deferred income tax liability 0us-gaap_DeferredTaxLiabilities 0us-gaap_DeferredTaxLiabilities  
Effective income tax rate reconciliation      
Income tax (benefit) expense computed at statutory rate (522,000)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate (3,317,000)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate (31,582,000)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
State income tax (benefit) expense, net of federal benefit 823,000us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes (385,000)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes (3,388,000)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Change in valuation allowance on deferred tax assets (370,000)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance 3,699,000us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance 35,050,000us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Prior period adjustments charged to retained earnings 0avhi_PriorPeriodAdjustmentsChargedToRetainedEarnings 0avhi_PriorPeriodAdjustmentsChargedToRetainedEarnings 0avhi_PriorPeriodAdjustmentsChargedToRetainedEarnings
Other 69,000us-gaap_IncomeTaxReconciliationOtherAdjustments 3,000us-gaap_IncomeTaxReconciliationOtherAdjustments (80,000)us-gaap_IncomeTaxReconciliationOtherAdjustments
Increase in deferred tax asset valuation allowance 400,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount (3,700,000)us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount  
Income tax refunds 0us-gaap_ProceedsFromIncomeTaxRefunds 1,300,000us-gaap_ProceedsFromIncomeTaxRefunds  
Internal Revenue Service (IRS) [Member]      
Operating Loss Carryforwards [Line Items]      
NOL carryforwards 142,700,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_InternalRevenueServiceIRSMember		    
State [Member]      
Operating Loss Carryforwards [Line Items]      
NOL carryforwards $ 304,100,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember		    
Maximum [Member] | Internal Revenue Service (IRS) [Member]      
Operating Loss Carryforwards [Line Items]      
NOL carryforward period of use 20 years    
Maximum [Member] | State [Member]      
Operating Loss Carryforwards [Line Items]      
NOL carryforward period of use 20 years    
Minimum [Member] | State [Member]      
Operating Loss Carryforwards [Line Items]      
NOL carryforward period of use 5 years