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Other Assets
 12 Months Ended
Dec. 31, 2024
Other Assets [Abstract]  
Other Assets

6. Other Assets

 

Other assets consist of the following:

 

December 31,  2024   2023 
         
Patents, at cost  $10,339   $10,280 
Deposits on capital items   18,443    23,045 
Marlin trade name, at cost   7,800    7,800 
Accumulated amortization   (8,008)   (7,171)
Other   9,173    9,958 
   $37,747   $43,912 

 

The capitalized cost of patents is amortized using the straight-line method over their useful lives. Expenses related to patent amortization was $0.5 million in 2024, $0.4 million in 2023, and $0.4 million in 2022. The estimated annual patent amortization expense for each of the next five years is $0.4 million. Costs incurred to maintain existing patents are charged to expense in the year incurred. The Marlin trade name will be amortized using the straight-line method over its useful life. The estimated annual trade name amortization cost for each of the next five years is $0.4 million. The intangible asset related to Marlin customer relationships are included in Other above and will be amortized using the straight-line method over its useful life. The estimated annual customer relationship name amortization expense for each of the next five years is $0.1 million.