QUARTERLY DATA (UNAUDITED) (Tables)

12 Months Ended

Dec. 31, 2021

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information [Table Text Block]

	First			Second			Third			Fourth
Year ended December 31, 2021	Quarter			Quarter			Quarter			Quarter
Revenue	$	26		$	26		$	25		$	25
Operating (expense)		(18	)		(20	)		(34	)		(5	)
Corporate general and administrative expense		(74	)		(111	)		(53	)		(122	)
Other income (expense) net		145			154			54			53
Income (loss) allocable to common shareholders		79			49			(8	)		(49	)
Income (loss) per common share – basic	$	0.01		$	0.01		($	0.01	)	$	0.00

	First			Second			Third			Fourth
Year ended December 31, 2020	Quarter			Quarter			Quarter			Quarter
Revenue	$	25		$	25		$	25		$	26
Operating (expense)		(18	)		(18	)		(18	)		(18	)
Corporate general and administrative expense		(104	)		(127	)		(65	)		(100	)
Other income (expense) net		60			60			137			58
Income (loss) allocable to common shareholders		(97	)		(137	)		2,182			(32	)
Income (loss) per common share – basic	($	0.02	)	($	0.03	)	$	0.43		$	0.00

	First			Second			Third			Fourth
Year ended December 31, 2019	Quarter			Quarter			Quarter			Quarter
Revenue	$	24		$	24		$	25		$	25
Operating (expense)		(15	)		(15	)		(215	)		(16	)
Corporate general and administrative expense		(88	)		(134	)		(92	)		(104	)
Other income (expense) net		60			213			106			62
Income (loss) allocable to common shareholders	$	126		$	(141	)	$	(2,320	)	$	(17	)
Income (loss) per common share – basic	$	0.02		($	0.03	)	($	0.45	)	$	0.00