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Royal Oaks Homes Acquisition - Pro Forma Operating Results (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Business Combinations [Abstract]  
Revenue $ 57,191us-gaap_BusinessAcquisitionsProFormaRevenue
Net income (loss) $ (706)us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
Loss per common share - basic and diluted (in dollars per share) $ (0.03)avhi_BusinessAcquisitionProFormaEarningsPerShareBasicandDiluted