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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

6 Months Ended

Jun. 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 June 30,								Six Months Ended June 30,
		2021				2020				2021				2020
Primary geographical markets:
United States		$	1,695,000			$	1,179,000			$	3,402,000			$	2,498,000
Asia			218,000				119,000				471,000				267,000
Other			12,000				5,000				16,000				10,000
			1,925,000				1,303,000				3,889,000				2,775,000
Major product lines:
ODM projects		$	1,093,000			$	779,000			$	2,375,000			$	1,568,000
ODM components			800,000				505,000				1,355,000				1,143,000
Distribution components			32,000				19,000				159,000				64,000
			1,925,000				1,303,000				3,889,000				2,775,000
Timing of revenue recognition:
Products transferred at a point in time		$	1,925,000			$	1,303,000			$	3,889,000			$	2,775,000