Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2022

Goodwill And Intangible Assets Disclosure [Abstract]

Summary Of Composition Of Intangible Assets

The composition of intangible assets, net is as follows (in thousands):

			As of March 31, 2022							As of December 31, 2021
	Weighted Average Life		Gross Amount		Accumulated Amortization			Net Carry Amount		Gross Amount		Accumulated Amortization			Net Carry Amount
Patent 1		2	$	211	$	(210	)	$	1	$	209	$	(182	)	$	27
Patent 2		11		128		(19	)		109		123		(18	)		105
Patent 3		14		192		(28	)		164		192		(25	)		167
Patent 5		20		46		(4	)		42		46		(3	)		43
Patent 6		20		39		(3	)		36		39		(2	)		37
Patent 7		13		2		-			2		2		-			2
Patent 8		20		3		-			3		3		-			3
Patent 10		19		3		-			3		3		-			3
Patent 11		19		6		-			6		6		-			6
Trademarks	Indefinite			50		-			50		50		-			50
Total intangible assets			$	680	$	(264	)	$	416	$	673	$	(230	)	$	443

Summary Of Future Amortization Of Amortizable Intangible Assets Held

The Company expects the future amortization of amortizable intangible assets held at March 31, 2022 to be (in thousands)

	Estimated Amortization Expense
2023			30
2024			30
2025			30
2026			30
2027			30
Thereafter			216
Total		$	366