Segment Information - Schedule of Net Revenue and Operating Income (Loss) by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Total net revenue	$ 300	$ 100	$ 300	$ 100
Total segment operating loss	(1,400)	100	(3,000)	100
Corporate and unallocated	(300)	(1,200)	(800)	(2,000)
Restructuring and other				(100)
Total operating loss	(1,700)	(1,100)	(3,800)	(2,000)
Interest expense	600		1,100
Realized losses on investments	500		(1,700)
Defined benefit plan adjustment			(8,500)
Other income (expense), net			100
Loss from continuing operations before income taxes	(1,800)	(1,100)	(15,000)	(2,000)
Total segment assets	83,900		83,900		$ 67,600
Corporate and unallocated	2,200		2,200		8,800
Total consolidated assets	86,100		86,100		76,400
Asset Management Business [Member]
Total net revenue		100		100
Total segment operating loss	(1,200)	100	(2,300)	100
Total operating loss
Total segment assets	33,000		33,000		16,800
Sports Technology Platform [Member]
Total net revenue	300	100	300
Total segment operating loss	(200)	$ 100	(700)
Total operating loss
Total segment assets	$ 50,900		$ 50,900		$ 50,800