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Revenue Recognition from Contracts with Customers (Tables)
 3 Months Ended
Mar. 31, 2024
Revenue Recognition from Contracts with Customers [Abstract]  
Schedule of Operating Revenues The Company’s operating revenues are comprised of the following:
   (In Thousands)
   Three Months Ended March 31,
   2024  2023
Regulated Tariff Sales          
Residential  $20,331   $19,004 
Commercial   5,976    5,379 
Industrial   3,133    2,839 
Fire Protection   3,292    3,104 
Wholesale   4,673    4,553 
Non-Regulated Contract Operations   3,088    3,229 
Total Revenue from Contracts with Customers  $40,493   $38,108 
Other Regulated Revenues   60    74 
Other Non-Regulated Revenues   116    113 
Inter-segment Elimination   (145)   (139)
Total Revenue  $40,524   $38,156