Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
General and administrative expense	$ 1,186	$ 1,146	$ 2,371	$ 2,380
Operating loss	(1,186)	(1,146)	(2,371)	(2,380)
Other income (loss), net	(166)	30	(175)	(1,967)
Interest income	249	145	523	246
Equity income (loss), net	(1,759)	1,454	(4,323)	(2,125)
Net income (loss) before income taxes	(2,862)	483	(6,346)	(6,226)
Income tax benefit (expense)	0	0	0	0
Net income (loss)	$ (2,862)	$ 483	$ (6,346)	$ (6,226)
Net income (loss) per share:
Basic (in dollars per share)	$ (0.18)	$ 0.03	$ (0.39)	$ (0.38)
Diluted (in dollars per share)	$ (0.18)	$ 0.03	$ (0.39)	$ (0.38)
Weighted average shares used in computing income (loss) per share:
Basic (in shares)	16,143	16,356	16,108	16,468
Diluted (in shares)	16,143	16,356	16,108	16,468