INVESTMENTS IN MARKETABLE SECURITIES (Details 2) - USD ($)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Marketable Securities, Gain (Loss) [Abstract]
Net realized (losses) gains from sales of marketable securities	$ (115,000)	$ 42,000
Net unrealized gains from marketable securities	93,000	236,000
Total net (losses) gains from investments in marketable securities	$ (22,703)	$ 278,223

Amount of unrealized gain (loss) on investment in marketable security.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(c))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

Name:	us-gaap_MarketableSecuritiesUnrealizedGainLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration