Segment Information - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net operating income (loss)	$ 73	$ 1,024	$ 1,119	$ 1,118
Industrial Assets Division [Member]
Net operating income (loss)	433	811	1,773	857
Financial Assets Division [Member]
Net operating income (loss)	462	628	923	1,180
Corporate and Other [Member]
Net operating income (loss)	$ (822)	$ (415)	$ (1,577)	$ (919)