Segment Information - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net operating income (loss)	$ 533	$ 1,612	$ 1,652	$ 2,730
Industrial Assets Division [Member]
Net operating income (loss)	765	1,489	2,538	2,346
Financial Assets Division [Member]
Net operating income (loss)	449	609	1,372	1,789
Corporate and Other [Member]
Net operating income (loss)	$ (681)	$ (486)	$ (2,258)	$ (1,405)