GEOGRAPHIC INFORMATION (Details) - Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 6,696,000	$ 6,783,000
Long-lived Assets	3,217,000	3,386,000
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	5,955,000	5,809,000
Long-lived Assets	2,306,000	2,411,000
KOREA, REPUBLIC OF
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	460,000	650,000
Long-lived Assets	0	0
CHINA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	135,000	228,000
Long-lived Assets	747,000	789,000
TAIWAN, PROVINCE OF CHINA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	11,000	45,000
Long-lived Assets	164,000	186,000
Other Foreign Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	135,000	51,000
Long-lived Assets	$ 0	$ 0