v3.7.0.1

Estimated Development Liability (Details) home in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 USD ($) home | Jun. 30, 2016 USD ($) | Jun. 30, 2017 USD ($) home | Jun. 30, 2016 USD ($) | Dec. 31, 2016 USD ($)
Estimated Development Liability |  |  |  |  |
Cash expenditures for obligations related to prior sales | $ 200 | $ 100 | $ 300 | $ 100 |
Estimated development liability | $ 31,847 |  | $ 31,847 |  | $ 32,102
Minimum |  |  |  |  |
Estimated Development Liability |  |  |  |  |
Number of estimated homes the estimated liability covers (homesites) | home | 8 |  | 8 |  |

X
- Definition Number of estimated homes the estimated liability covers + References No definition available. + Details
Name: | avhi_Numberofestimatedhomestheestimatedliabilitycovers
Namespace Prefix: | avhi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Payments for the cost of improvements during the period related to retail land sales in which the obligation to complete such improvements represent a contractual responsibility of the land developer (seller). Such obligation is generally included in the sales terms. + References No definition available. + Details
Name: | avhi_PaymentsForRetailLandSalesImprovementCostsPriorSales
Namespace Prefix: | avhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RetailLandSalesEstimatedCostOfMajorImprovementsDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount as of the balance sheet date of the liability for the obligation to provide retail land sale buyers with improvements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 976 -SubTopic 330 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6497913&loc=d3e22628-108666 + Details
Name: | us-gaap_RetailLandSalesLiabilityForImprovements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |