INVESTMENT IN EQUITY SECURITIES (IMAGION BIOSYSTEMS) (Details)	6 Months Ended
	Jun. 30, 2022 USD ($)
INVESTMENT IN IMAGION BIOSYSTEMS
Balance as of December 31, 2021	$ 2,901,000
Change in the unrealized fair value of securities	(1,913,000)
Change due to the sale of securities	(28,000)
Balance as of June 30, 2022	$ 960,000