CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Total
Balance at Dec. 31, 2018	$ 442,000	$ 83,649,000	$ (69,098,000)	$ 14,993,000
Balance (in shares) at Dec. 31, 2018	44,215
Net loss	$ 0	0	(371,000)	(371,000)
Common stock dividend	0	(2,653,000)		(2,653,000)
Balance at Mar. 31, 2019	$ 442,000	80,996,000	(69,469,000)	11,969,000
Balance (in shares) at Mar. 31, 2019	44,215
Balance at Dec. 31, 2018	$ 442,000	83,649,000	(69,098,000)	14,993,000
Balance (in shares) at Dec. 31, 2018	44,215
Net loss				(717,000)
Balance at Sep. 30, 2019	$ 442,000	75,690,000	(69,815,000)	6,317,000
Balance (in shares) at Sep. 30, 2019	44,215
Balance at Mar. 31, 2019	$ 442,000	80,996,000	(69,469,000)	11,969,000
Balance (in shares) at Mar. 31, 2019	44,215
Net loss	$ 0	0	(21,000)	(21,000)
Balance at Jun. 30, 2019	$ 442,000	80,996,000	(69,490,000)	11,948,000
Balance (in shares) at Jun. 30, 2019	44,215
Net loss	$ 0	0	(325,000)	(325,000)
Common stock dividend	0	(5,306,000)		(5,306,000)
Balance at Sep. 30, 2019	$ 442,000	75,690,000	(69,815,000)	6,317,000
Balance (in shares) at Sep. 30, 2019	44,215
Balance at Dec. 31, 2019	$ 442,000	75,690,000	(70,077,000)	6,055,000
Balance (in shares) at Dec. 31, 2019	44,215
Net loss	$ 0	0	(242,000)	(242,000)
Balance at Mar. 31, 2020	$ 442,000	75,690,000	(70,319,000)	5,813,000
Balance (in shares) at Mar. 31, 2020	44,215
Balance at Dec. 31, 2019	$ 442,000	75,690,000	(70,077,000)	6,055,000
Balance (in shares) at Dec. 31, 2019	44,215
Net loss				(885,000)
Balance at Sep. 30, 2020	$ 442,000	75,690,000	(70,962,000)	5,170,000
Balance (in shares) at Sep. 30, 2020	44,215
Balance at Mar. 31, 2020	$ 442,000	75,690,000	(70,319,000)	5,813,000
Balance (in shares) at Mar. 31, 2020	44,215
Net loss	$ 0	0	(236,000)	(236,000)
Balance at Jun. 30, 2020	$ 442,000	75,690,000	(70,555,000)	5,577,000
Balance (in shares) at Jun. 30, 2020	44,215
Net loss	$ 0	0	(407,000)	(407,000)
Balance at Sep. 30, 2020	$ 442,000	$ 75,690,000	$ (70,962,000)	$ 5,170,000
Balance (in shares) at Sep. 30, 2020	44,215