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Note 7 - Inventories - Summary of Inventory (Details) - Homebuilding Segment [Member] - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Reportable Segment, West [Member]    
Housing completed or under construction:    
Housing Completed or Under Construction $ 534,423 $ 365,867
Land and land under development:    
Land and Land Under Development 487,001 580,682
Reportable Segment, Mountain [Member]    
Housing completed or under construction:    
Housing Completed or Under Construction 306,681 253,578
Land and land under development:    
Land and Land Under Development 252,838 259,484
Reportable Segment, East [Member]    
Housing completed or under construction:    
Housing Completed or Under Construction 135,268 127,591
Land and land under development:    
Land and Land Under Development 130,894 176,760
Housing Completed or Under Construction 976,372 747,036
Land and Land Under Development 870,733 1,016,926
Land and Land Under Development $ 1,847,105 $ 1,763,962