Changes In Stockholders' Equity - USD ($)	Common Stock [Member]	Paid-In Capital [Member]	Accumulated Deficit [Member]	Total
Balance, value at Dec. 31, 2018	$ 11,000	$ 58,276,000	$ (51,520,000)	$ 6,767,000
Balance, shares at Dec. 31, 2018	10,639,290
Net income (loss)			(96,000)	(96,000)
Compensation expense related to stock issued		4,000		4,000
Compensation expense related to stock issued, shares	4,962
Balance, shares at Mar. 31, 2019	10,644,252
Balance, value at Mar. 31, 2019	$ 11,000	58,280,000	(51,616,000)	6,675,000
Balance, value at Dec. 31, 2018	$ 11,000	58,276,000	(51,520,000)	6,767,000
Balance, shares at Dec. 31, 2018	10,639,290
Net income (loss)				(269,000)
Balance, shares at Sep. 30, 2019	10,653,550
Balance, value at Sep. 30, 2019	$ 11,000	58,290,000	(51,789,000)	6,512,000
Balance, value at Mar. 31, 2019	$ 11,000	58,280,000	(51,616,000)	6,675,000
Balance, shares at Mar. 31, 2019	10,644,252
Net income (loss)			9,000	9,000
Compensation expense related to stock issued	$ 4,411	6,000		6,000
Balance, shares at Jun. 30, 2019	10,648,663
Balance, value at Jun. 30, 2019	$ 11,000	58,286,000	(51,607,000)	6,690,000
Net income (loss)			(182,000)	(182,000)
Compensation expense related to stock issued		4,000		4,000
Compensation expense related to stock issued, shares	4,887
Balance, shares at Sep. 30, 2019	10,653,550
Balance, value at Sep. 30, 2019	$ 11,000	58,290,000	(51,789,000)	6,512,000
Balance, value at Dec. 31, 2019	$ 11,000	58,293,000	(51,956,000)	$ 6,348,000
Balance, shares at Dec. 31, 2019	10,658,775			10,658,775
Net income (loss)			(527,000)	$ (527,000)
Compensation expense related to stock issued		4,000		4,000
Compensation expense related to stock issued, shares	7,436
Balance, shares at Mar. 31, 2020	10,666,211
Balance, value at Mar. 31, 2020	$ 11,000	58,297,000	(52,483,000)	5,825,000
Balance, value at Dec. 31, 2019	$ 11,000	58,293,000	(51,956,000)	$ 6,348,000
Balance, shares at Dec. 31, 2019	10,658,775			10,658,775
Net income (loss)				$ (1,894,000)
Balance, shares at Sep. 30, 2020	10,680,050			10,680,050
Balance, value at Sep. 30, 2020	$ 11,000	58,304,000	(53,850,000)	$ 4,465,000
Balance, value at Mar. 31, 2020	$ 11,000	58,297,000	(52,483,000)	5,825,000
Balance, shares at Mar. 31, 2020	10,666,211
Net income (loss)			(554,000)	(554,000)
Compensation expense related to stock issued	$ 7,328	3,000		3,000
Balance, shares at Jun. 30, 2020	10,673,539
Balance, value at Jun. 30, 2020	$ 11,000	58,300,000	(53,037,000)	5,274,000
Net income (loss)			(813,000)	(813,000)
Compensation expense related to stock issued		4,000		$ 4,000
Compensation expense related to stock issued, shares	6,511
Balance, shares at Sep. 30, 2020	10,680,050			10,680,050
Balance, value at Sep. 30, 2020	$ 11,000	$ 58,304,000	$ (53,850,000)	$ 4,465,000