MARKETABLE SECURITIES (Details) - USD ($)	Jun. 30, 2024	Dec. 31, 2023
Fair Value [Member]
Schedule of Investments [Line Items]
Certificates of deposit	$ 1,510,000	$ 6,077,000
Government securities	12,924,000	14,818,000
Fixed income mutual funds	7,731,000	7,676,000
Corporate bonds and notes	495,000
Total marketable securities	22,660,000	28,571,000
Cost Basis [Member]
Schedule of Investments [Line Items]
Certificates of deposit	1,514,000	6,112,000
Government securities	12,910,000	14,701,000
Fixed income mutual funds	7,618,000	7,585,000
Corporate bonds and notes	496,000
Total marketable securities	22,538,000	28,398,000
Gross Unrealized Gains [Member]
Schedule of Investments [Line Items]
Certificates of deposit
Government securities	51,000	127,000
Fixed income mutual funds	113,000	91,000
Corporate bonds and notes
Total marketable securities	164,000	218,000
Gross Unrealized Losses [Member]
Schedule of Investments [Line Items]
Certificates of deposit	(4,000)	(35,000)
Government securities	(37,000)	(10,000)
Fixed income mutual funds
Corporate bonds and notes	(1,000)
Total marketable securities	$ (42,000)	$ (45,000)