Supplemental Reserve Information (Details 5) - USD ($)		12 Months Ended
	Oct. 01, 2008	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2007	Dec. 31, 2006	Dec. 31, 2005
Supplemental Reserve Information Details 4Abstract
Land		$ 688,000	$ 688,000
Buildings		1,580,000													$ 1,298,000
Acquisition Costs															$ 282,000
Investment in real estate		2,268,000	2,268,000	$ 2,268,000	$ 2,268,000	$ 2,268,000	$ 2,268,000	$ 2,268,000	$ 2,268,000	$ 2,268,000	$ 2,268,000	$ 2,268,000	$ 2,196,000	$ 1,986,000
Acquistions in real estate	$ 38,000												34,000	210,000
Investment in real estate		2,268,000	2,268,000	2,268,000	2,268,000	2,268,000	2,268,000	2,268,000	2,268,000	2,268,000	2,268,000	2,268,000	2,230,000	2,196,000
Accumulated depreciation		945,000	897,000	850,000	803,000	756,000	704,000	652,000	601,000	501,000	400,000	300,000	120,000	49,000
Depreciation Expense	$ 96,000	47,000	45,000	47,000	47,000	47,000	52,000	52,000	51,000	100,000	101,000	100,000	84,000	71,000
Accumulated depreciation		$ 992,000	$ 945,000	$ 897,000	$ 850,000	$ 803,000	$ 756,000	$ 704,000	$ 652,000	$ 601,000	$ 501,000	$ 400,000	$ 204,000	$ 120,000