Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Reconciliation of Intangible Assets

The reconciliation of intangible assets for the years ended December 31, 2022 and 2021 was as follows (in thousands):

	Year Ended			Year Ended
	December 31,			December 31,
	2022			2021
Patented technologies
Gross carrying amount at beginning of period	$	68,322		$	68,322
Impairment of acquired intangible assets		(20,699	)		—
Gross carrying amount at end of period		47,623			68,322
Accumulated amortization at beginning of period		(45,573	)		(43,113	)
Amortization expense		(2,050	)		(2,460	)
Accumulated amortization at end of period		(47,623	)		(45,573	)
Net book value at end of period	$	—		$	22,749

Schedule of Net Book Value of Intangible Assets

The net book value of the Company’s intangible assets at December 31, 2022 and 2021 is summarized as follows (in thousands):

					Estimated
					Remaining
					Useful Life at
	December 31,		December 31,		December 31,
	2022		2021		2022
					(Years)
Patented technologies
DEXYCU / Verisome	$	—	$	22,749		—
Total intangible assets, net	$	—	$	22,749