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Note 6 - Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Schedule of Finite-Lived Intangible Assets [Table Text Block]

December 31, 2022
		Cost				Accumulated Amortization				Net
Patents		$	565			$	446			$	119
Certifications			54				54				-
Totals		$	619			$	500			$	119

December 31, 2021
		Cost				Accumulated Amortization				Net
Patents		$	602			$	422			$	180
Certifications			54				51				3
Totals		$	656			$	473			$	183

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Year Ended
2023		$	17
2024			13
2025			13
2026			5
2027			5
Thereafter			66
Total		$	119

X

- Definition

Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
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-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)
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