Quarterly Data - Quarterly Data (Details) - USD ($)	3 Months Ended												12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Total Revenues	$ 1,365,000	$ 1,340,000	$ 1,487,000	$ 1,395,000	$ 1,561,000	$ 1,479,000	$ 2,063,000	$ 1,631,000	$ 1,709,000	$ 1,274,000	$ 1,327,000	$ 1,294,000	$ 5,587,000	$ 6,734,000	$ 5,604,000
Expense	(1,615,000)	(1,566,000)	(1,714,000)	(1,441,000)	(2,108,000)	(1,304,000)	(1,574,000)	(1,381,000)	(1,343,000)	(1,317,000)	(1,442,000)	(1,272,000)	6,336,000	6,367,000	5,374,000
Operating income (loss)	(250,000)	(226,000)	(227,000)	(46,000)	(547,000)	175,000	489,000	250,000	366,000	(43,000)	(115,000)	22,000	(749,000)	367,000	230,000
Current tax (provision) benefit	(1,000)	(58,000)	24,000	(4,000)	(43,000)	(98,000)	(17,000)	(66,000)	(44,000)	1,000	4,000	(5,000)
Deferred tax (provision) benefit	(107,000)	98,000	80,000	71,000	(58,000)	(172,000)	230,000	121,000	(910,000)	287,000	249,000	185,000
Net income (loss)	$ (358,000)	$ (186,000)	$ (123,000)	$ 21,000	$ (648,000)	$ (95,000)	$ 702,000	$ 305,000	$ (588,000)	$ 245,000	$ 138,000	$ 202,000	$ (646,000)	$ 264,000	$ (3,000)
Earnings (loss) per share of common stock Basic and diluted	$ (0.04)	$ (0.03)	$ (0.02)		$ (0.09)	$ (0.01)	$ 0.10	$ 0.04	$ (0.09)	$ 0.04	$ 0.02	$ 0.03	$ (0.09)	$ 0.04