Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Income (loss) from continuing operations	$ 536	$ (4)	$ 1,016	$ (716)
Income (loss) from discontinued operations	1	(115)	15	(210)
Net income (loss)	537	(119)	1,031	(926)
Other comprehensive income (loss):
Unrealized gain on investments	1
Comprehensive income (loss)	$ 538	$ (119)	$ 1,031	$ (926)