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Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Intangible assets:
Gross Carrying Amount	$ 1,985		$ 1,985		$ 1,716
Accumulated Amortization	(73)		(73)		(66)
Amortization expense	$ 3	$ 3	$ 7	$ 8
Minimum
Intangible assets:
Useful lives of intangible assets	3 years		3 years
Maximum
Intangible assets:
Useful lives of intangible assets	20 years		20 years
Licenses
Intangible assets:
Gross Carrying Amount	$ 149		$ 149		149
Accumulated Amortization	(65)		(65)		(61)
Patents
Intangible assets:
Gross Carrying Amount	130		130		92
Accumulated Amortization	(8)		(8)		(5)
Patents pending
Intangible assets:
Gross Carrying Amount	1,671		1,671		1,444
Trademarks
Intangible assets:
Gross Carrying Amount	13		13		13
Trademarks pending
Intangible assets:
Gross Carrying Amount	$ 22		$ 22		$ 18

X

- Definition

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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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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