Other Financial Statement Details

12 Months Ended

Dec. 31, 2022

Other Financial Statement Details Disclosure [Abstract]

Other Financial Statement Details

Note 5. Other Financial Statement Details

Property and Equipment, Net

Property and equipment are summarized in the following table (in thousands):

	December 31, 2022			December 31, 2021
Computer hardware	$	72		$	72
Furniture and fixtures		29			29
		101			101
Less accumulated depreciation and amortization		(75	)		(68	)
Total	$	26		$	33

Depreciation expense was approximately $20,000 and $19,000 for the years ended December 31, 2022 and December 31, 2021, respectively.

Intangible Assets, Net

Intangible assets consist of the following (in thousands):

	December 31, 2022							December 31, 2021
	Amount		Accumulated Amortization			Net Amount		Amount		Accumulated Amortization			Net Amount
Patents and merger costs	$	22,003	$	(11,310	)	$	10,693	$	22,003	$	(9,366	)	$	12,637

Future amortization expense for intangible assets over their remaining useful lives is as follows (in thousands):

Year ending December 31	Patents and trademarks
2023		1,944
2024		1,944
2025		1,944
2026		1,944
2027 and thereafter		2,917
Total	$	10,693

Amortization expense was $1.9 million for the year ended December 31, 2022 and 2021.