Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2023

Intangible Assets

Schedule of intangible assets and estimated useful lives

	Estimated useful lives (years)			September 30, 2023			December 31, 2022
Tradename	5	to	7	$	555		$	555
Patents and technological know-how	10	to	20		7,164			7,053
Proprietary software	3	to	15		2,981			2,981
Other	3	to	5		323			323
Total intangible assets					11,023			10,912
Accumulated amortization					(9,229	)		(8,841	)
Total intangible assets, net				$	1,794		$	2,071

Schedule of amortization of intangible assets

	Three months ended September 30,				Nine months ended September 30,
	2023		2022		2023		2022
Amortization of intangible assets	$	141	$	686	$	388	$	2,038

Schedule of estimated future amortization expense of intangible assets

Years ending December 31,	Amount
2023 (Remainder)	$	129
2024		255
2025		194
2026		193
2027		63
Thereafter		960
Total	$	1,794