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PERMIT AND OTHER INTANGIBLE ASSETS
 12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
PERMIT AND OTHER INTANGIBLE ASSETS

NOTE 5

PERMIT AND OTHER INTANGIBLE ASSETS

 

The following table summarizes changes in the carrying value of permits. No permit exists at our Services and Medical Segments.

 

Permit (amount in thousands)  Treatment 
Balance as of December 31, 2019  $8,790 
Permit in progress   132 
Balance as of December 31, 2020  $8,922 
Permit renewal  $121 
Permit in progress   433 
Balance as of December 31, 2021  $9,476 

 

The following table summarizes information relating to the Company’s definite-lived intangible assets:

 

       December 31, 2021   December 31, 2020 
   Weighted Average
Amortization		   Gross       Net   Gross       Net 
Other Intangibles  Period   Carrying   Accumulated   Carrying   Carrying   Accumulated   Carrying 
(amount in thousands)  (Years)   Amount   Amortization   Amount   Amount   Amortization   Amount 
                            
Patent  8.3   $787   $(351)  $436   $742   $(334)  $408 
Software  3    592    (415)   177    418    (411)   7 
Customer relationships  10    3,370    (3,089)   281    3,370    (2,910)   460 
Total      $4,749   $(3,855)  $894   $4,530   $(3,655)  $875 

 

The intangible assets noted above were amortized on a straight-line basis over their useful lives with the exception of customer relationships which were amortized using an accelerated method.

 

The following table summarizes the expected amortization over the next five years for our definite-lived intangible assets:

 

   Amount 
Year  (In thousands) 
     
2022  $233 
2023   192 
2024   61 
2025   14 
2026   11 

 

Amortization expense recorded for definite-lived intangible assets was approximately $211,000 and $239,000, for the years ended December 31, 2021 and 2020, respectively.