Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
General and administrative expense	$ 1,185	$ 1,234
Operating loss	(1,185)	(1,234)
Other income (loss), net	(9)	(1,997)
Interest income	274	101
Equity income (loss), net	(2,564)	(3,579)
Net income (loss) before income taxes	(3,484)	(6,709)
Income tax benefit (expense)	0	0
Net income (loss)	$ (3,484)	$ (6,709)
Net income (loss) per share:
Basic (in dollars per share)	$ (0.22)	$ (0.40)
Diluted (in dollars per share)	$ (0.22)	$ (0.40)
Weighted average shares used in computing income (loss) per share:
Basic (in shares)	16,072	16,587
Diluted (in shares)	16,072	16,587