The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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INTANGIBLE ASSETS (Details Narrative) $ in Thousands	3 Months Ended		6 Months Ended
INTANGIBLE ASSETS (Details Narrative) $ in Thousands	Jun. 30, 2021 USD ($) Number	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) Number	Jun. 30, 2020 USD ($)
Capitalized patent costs and trademarks \| $			$ 77	$ 0
Amortization expense \| $	$ 7	$ 5	$ 12	10
Patents [Member]
Number of patents granted	12		12
Number of pending patents	4		4
Number of trademarks	6		6
Number of pending trademarks	17		17
Amortization method			straight-line basis
Description of expire			issued patents expire between the years 2022 and 2039
Patents [Member] \| Europe [Member]
Number of patents granted	1		1
Patents [Member] \| Foreign [Member]
Number of pending patents	5		5
Number of pending trademarks	17		17
Patents [Member] \| Minimum [Member]
Estimated lives of intangible assets			17 years
Patents [Member] \| Maximum [Member]
Estimated lives of intangible assets			19 years
Capitalized Software [Member]
Estimated lives of intangible assets			5 years
Trademarks [Member]
Amortization method			straight-line basis
Trademarks [Member] \| Europe [Member]
Number of trademarks	2		2
Trademarks [Member] \| COLOMBIA [Member]
Number of trademarks	1		1
Trademarks [Member] \| AUSTRALIA [Member]
Number of trademarks	1		1
Trademarks [Member] \| JAPAN [Member]
Number of trademarks	1		1
Trademarks [Member] \| MEXICO [Member]
Number of trademarks	1		1
Trademarks [Member] \| SINGAPORE [Member]
Number of trademarks	1		1
Patents and Trademark [Member]
Capitalized patent costs and trademarks \| $			$ 55	29
Amortization expense \| $	$ 9	$ 7	$ 16	$ 14