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Other Assets (Tables)
9 Months Ended
Sep. 30, 2024
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of Other Assets
Components of other assets were as follows at the dates indicated (in thousands):

September 30,December 31,
20242023
Insurance collateral deposits$605 $605 
State collateral deposits23 23 
Materials and supplies948 1,050 
Debt issuance costs1,007 1,259 
Other373 371 
Total other assets$2,956 $3,308