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Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2021
Goodwill And Intangible Assets Disclosure [Abstract]  
Reconciliation of Intangible Assets

The reconciliation of intangible assets for the years ended December 31, 2021 and 2020 (in thousands):

 

 

 

Year Ended

 

 

Year Ended

 

 

 

December 31,

 

 

December 31,

 

 

 

2021

 

 

2020

 

Patented technologies

 

 

 

 

 

 

 

 

Gross carrying amount at beginning of period

 

$

68,322

 

 

$

68,322

 

Gross carrying amount at end of period

 

 

68,322

 

 

 

68,322

 

Accumulated amortization at beginning of period

 

 

(43,113

)

 

 

(40,653

)

Amortization expense

 

 

(2,460

)

 

 

(2,460

)

Accumulated amortization at end of period

 

 

(45,573

)

 

 

(43,113

)

Net book value at end of period

 

$

22,749

 

 

$

25,209

 

Schedule of Net Book Value of Intangible Assets

The net book value of the Company’s intangible assets at December 31, 2021 and 2020 is summarized as follows (in thousands):

 

 

 

 

 

 

 

 

 

 

 

Estimated

 

 

 

 

 

 

 

 

 

 

 

Remaining

 

 

 

 

 

 

 

 

 

 

 

Useful Life at

 

 

 

December 31,

 

 

December 31,

 

 

December 31,

 

 

 

2021

 

 

2020

 

 

2021

 

 

 

 

 

 

 

 

 

 

 

(Years)

 

Patented technologies

 

 

 

 

 

 

 

 

 

 

 

 

DEXYCU / Verisome

 

$

22,749

 

 

$

25,209

 

 

 

9.25

 

 

 

$

22,749

 

 

$

25,209