Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating expenses:
Compensation and benefits	$ 1,410	$ 1,506
Professional and outside services	1,668	3,358
Property operating and maintenance	17	15
Insurance	257	261
Other operating	72	68
Total operating expenses	3,424	5,208
Operating income (loss)	(3,424)	(5,208)
Interest income	9	1
Interest expense	(57)	0
Income (loss) before income taxes	(3,472)	(5,207)
Income tax expense (benefit)	1	1
Net income (loss)	$ (3,473)	$ (5,208)
Net income (loss) per common share - basic (in dollars per share)	$ (0.09)	$ (0.13)
Weighted average common shares outstanding - basic (in shares)	40,738	40,738