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Royal Oaks Homes Acquisition - Narrative (Details) (USD $)
0 Months Ended 3 Months Ended
Mar. 13, 2014
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Business Acquisition [Line Items]        
Business Acquisition, Goodwill, Expected Tax Deductible Amount       $ 3,700,000us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount
Royal Oak LLC and Affiliate [Member]        
Business Acquisition [Line Items]        
Cash payments to acquire businesses 65,000,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= avhi_RoyalOakLLCandAffiliateMember
     
Potential earn-out 3,000,000us-gaap_BusinessCombinationContingentConsiderationLiability
/ us-gaap_BusinessAcquisitionAxis
= avhi_RoyalOakLLCandAffiliateMember
     
Estimate of total payment for the earn-out 2,400,000avhi_BusinessCombinationsConsiderationTransferredContingentConsiderationEstimate
/ us-gaap_BusinessAcquisitionAxis
= avhi_RoyalOakLLCandAffiliateMember
2,400,000avhi_BusinessCombinationsConsiderationTransferredContingentConsiderationEstimate
/ us-gaap_BusinessAcquisitionAxis
= avhi_RoyalOakLLCandAffiliateMember
   
Contingent consideration (earn-out) 1,100,000avhi_BusinessCombinationsConsiderationTransferredContingentConsiderationPaymentstoDate
/ us-gaap_BusinessAcquisitionAxis
= avhi_RoyalOakLLCandAffiliateMember
1,100,000avhi_BusinessCombinationsConsiderationTransferredContingentConsiderationPaymentstoDate
/ us-gaap_BusinessAcquisitionAxis
= avhi_RoyalOakLLCandAffiliateMember
   
Target earn-out   3,000,000avhi_BusinessCombinationsConsiderationTransferredContingentConsiderationTarget
/ us-gaap_BusinessAcquisitionAxis
= avhi_RoyalOakLLCandAffiliateMember
   
Warranty administrative services 200,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedContingentLiability
/ us-gaap_BusinessAcquisitionAxis
= avhi_RoyalOakLLCandAffiliateMember
     
Warranty period 2 years      
Trade name 614,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
/ us-gaap_BusinessAcquisitionAxis
= avhi_RoyalOakLLCandAffiliateMember
     
Amortization of Intangible Assets   100,000us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_BusinessAcquisitionAxis
= avhi_RoyalOakLLCandAffiliateMember
   
Transaction and integration costs     900,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= avhi_RoyalOakLLCandAffiliateMember
 
Royal Oak LLC and Affiliate [Member] | Minimum [Member]        
Business Acquisition [Line Items]        
Performance target to receive earn-out 50.00%avhi_BusinessCombinationPerformanceTargettoReceiveEarnout
/ us-gaap_BusinessAcquisitionAxis
= avhi_RoyalOakLLCandAffiliateMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
     
Royal Oak LLC and Affiliate [Member] | Trade Names [Member]        
Business Acquisition [Line Items]        
Trade name $ 600,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
/ us-gaap_BusinessAcquisitionAxis
= avhi_RoyalOakLLCandAffiliateMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember
     
Amortization period 3 years      
Royal Oak LLC and Affiliate [Member] | Lots Owned Or Controlled [Member]        
Business Acquisition [Line Items]        
Number of primary residential lots 2,500us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_BusinessAcquisitionAxis
= avhi_RoyalOakLLCandAffiliateMember
/ us-gaap_RealEstatePropertiesAxis
= avhi_LotsOwnedOrControlledMember