INVESTMENT IN IMAGION BIOSYSTEMS (Details)	9 Months Ended
Sep. 30, 2021 USD ($)
INVESTMENT IN IMAGION BIOSYSTEMS
Balance as of December 31, 2020	$ 5,875,000
Change in the realized fair value of securities	(3,069,000)
Balance as of September 30, 2021	$ 2,806,000

Cost of the investment.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=99383244&loc=d3e12121-115841

Name:	us-gaap_InvestmentOwnedAtCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant