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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 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.

		Twelve Months Ended December 31,
		2021				2020
Primary geographical markets:
United States		$	7,731,000			$	5,955,000
Asia			880,000				722,000
Other			32,000				19,000
			8,643,000				6,696,000
Major product lines:
ODM projects		$	5,462,000			$	3,936,000
ODM components			2,972,000				2,552,000
Distribution components			209,000				208,000
			8,643,000				6,696,000
Timing of revenue recognition:
Products transferred at a point in time		$	8,643,000			$	6,696,000

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The following tables presents assets (liabilities) measured at fair value on a recurring basis:

		As of December 31, 2021
		Level 1				Level 2				Level 3				Total
Certificates of deposit		$	-			$	1,244,000			$	-			$	1,244,000
Short-term investments			1,566,000				-				-				1,566,000
		$	1,566,000			$	1,244,000			$	-			$	2,810,000

		As of December 31, 2020
		Level 1				Level 2				Level 3				Total
Certificates of deposit		$	1,241,000			$	-			$	-			$	1,241,000
		$	1,241,000			$	-			$	-			$	1,241,000

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- References

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045

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Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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