SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Disaggregation of Revenue [Table Text Block]

In the following table, revenue is disaggregated by primary geographical market, major product line, and timing of revenue recognition.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Primary geographical markets:
United States	$	2,298,000	$	1,809,000	$	5,700,000	$	4,308,000
Asia		182,000		176,000		653,000		442,000
Other		5,000		6,000		21,000		16,000
		2,485,000		1,991,000		6,374,000		4,766,000
Major product lines:
ODM projects	$	1,695,000	$	1,196,000	$	4,069,000	$	2,765,000
ODM components		774,000		772,000		2,129,000		1,915,000
Distribution components		16,000		23,000		176,000		86,000
		2,485,000		1,991,000		6,374,000		4,766,000
Timing of revenue recognition:
Products transferred at a point in time	$	2,485,000	$	1,991,000	$	6,374,000	$	4,766,000