QUARTERLY DATA (UNAUDITED) (Tables)

12 Months Ended

Dec. 31, 2022

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information [Table Text Block]

	First			Second			Third			Fourth
Year ended December 31, 2022	Quarter			Quarter			Quarter			Quarter
Revenue	$	45		$	47		$	63		$	57
Operating (expense)		(12	)		(13	)		(18	)		(14	)
Corporate general and administrative expense		(80	)		(80	)		(71	)		(86	)
Other income (expense) net		52			184			53			54
Income (loss) allocable to common shareholders		5			138			27			11
Income (loss) per common share – basic	$	0.01		$	0.02		$	0.01		$	0.01
	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	)	$	(1,367	)	$	2,182		$	(32	)
Income (loss) per common share – basic	$	0.02			($0.03	)		($0.43	)	$	0.00