Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Intangible Assets

Schedule of intangible assets and estimated useful lives

	Estimated useful lives				As of December 31,
	(in years)				2021			2020
Tradename		5	to	7	$	555		$	555
Patents and technological know-how			10			33,553			25,427
Proprietary software		3	to	15		2,981			2,981
Other		3	to	5		323			323
Total intangible assets, gross						37,412			29,286
Accumulated amortization						(12,326	)		(10,038	)
Total intangible assets, net					$	25,086		$	19,248

Schedule of estimated future amortization expense of intangible assets

Years ending December 31,
2022	$	2,683
2023		2,677
2024		2,413
2025		2,351
2026		2,351
Thereafter		12,611
Total	$	25,086