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Other Intangible Assets
 12 Months Ended
Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Other Intangible Assets OTHER INTANGIBLE ASSETS
Other intangible assets consisted of the following (in thousands):
Estimated
Useful Life
(in years)		As of March 31,As of December 31,
202220212020
Indefinite-lived trademarksN/A$9,052 $9,052 $9,052 
Patents7to241,043 1,443 1,443 
10,095 10,495 10,495 
Accumulated amortization - definite-lived intangible assets(791)(1,130)(1,115)
$9,304 $9,365 $9,380 

Amortization expense was as follows (in thousands):
Year Ended March 31,Three-Months Ended March 31, (transition period)Year Ended December 31,
 2022202120202019
Amortization expense$61 $15 $1,669 $3,497 

Future amortization of definite-lived intangible assets is as follows (in thousands):
2023$61 
202461 
202561 
202647 
20273 
Thereafter19 
$252