Other Income (Expense), Net Other Income (Expense), Net (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Other Nonoperating Income (Expense), Net - Total	$ 8,122,000	$ 168,000	$ 8,882,000	$ (25,964,000)
Investment Income, Dividend	300,000
Other Nonrecurring Expense	267,000	0	571,000	0
Other Nonoperating Income (Expense), Net - Other	(53,000)	(29,000)	(147,000)	117,000
Other Nonoperating Expense	415,000	1,100,000	435,000	1,100,000
kaleo [Member]
Unrealized Gain (Loss) on Investments - kaleo	200,000	1,300,000	918,000	(24,800,000)
Carrying value	35,200,000		35,200,000		$ 34,600,000
Harbinger Capital Partners Special Situations Fund
Gain (Loss) on Investments	(363,000)	(3,000)	(511,000)	(181,000)
Carrying value	$ 200,000	$ 900,000	$ 200,000	$ 900,000	$ 700,000