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Land and Development Costs and Subsurface Interests - Summary of Land and Development Costs (Details) - USD ($)
Dec. 31, 2016
Dec. 31, 2015
Land and Development Costs $ 51,955,278 $ 53,406,020
Developable Land    
Land and Development Costs 39,681,558 38,736,865
Land, Underlying Subsurface Interests [Member]    
Land and Development Costs $ 12,273,720 $ 14,669,155