Property, Buildings and Equipment - Schedule of Property, Buildings and Equipment (Detail) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, buildings and equipment	$ 62,849,743	$ 62,882,194
Less accumulated depreciation	(48,484,873)	(48,081,666)
Property, buildings and equipment, net	14,364,870	14,800,528
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, buildings and equipment	8,830,867	8,830,867
Buildings and Recreational Facilities [Member]
Property, Plant and Equipment [Line Items]
Property, buildings and equipment	32,105,123	32,093,233
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, buildings and equipment	21,778,127	21,863,715
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, buildings and equipment	$ 135,626	$ 94,379