Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating expenses:
Compensation and benefits	$ 407	$ 417
Professional and outside services	563	1,135
Property operating and maintenance	9	9
Insurance	67	61
Other operating	11	13
Total operating expenses	1,057	1,635
Operating income (loss)	(1,057)	(1,635)
Interest income	0	1
Income (loss) before income taxes	(1,057)	(1,634)
Income tax expense (benefit)	0	1
Net income (loss)	$ (1,057)	$ (1,635)
Net income (loss) per common share - basic (in dollars per share)	$ (0.03)	$ (0.04)
Weighted average common shares outstanding - basic (in shares)	40,738	40,738