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GENERAL (Details)
$ in Thousands, gal / d in Millions
3 Months Ended 6 Months Ended
Jan. 14, 2022
USD ($)
Jun. 30, 2022
USD ($)
Facility
Plan
Jun. 30, 2022
USD ($)
gal / d
Squarefeet
Subsidiary
Jun. 30, 2021
USD ($)
May 26, 2022
USD ($)
Business Operations [Abstract]          
Consideration transferred     $ 6,341 $ 0  
Number of subsidiaries not regulated | Subsidiary     3    
Artesian Development purchased area of office space (in square feet) | Squarefeet     10,000    
Artesian Development purchased area of warehouse space (in square feet) | Squarefeet     10,000    
Tidewater Environmental Services Inc [Member]          
Business Operations [Abstract]          
Purchase price   $ 3,122 $ 3,122    
Consideration transferred $ 6,400        
Note forgiven $ 2,100        
Clayton [Member]          
Business Operations [Abstract]          
Purchase price         $ 5,000
Artesian Utility [Member]          
Business Operations [Abstract]          
Initial contract period of operating wastewater treatment facilities in Middletown   20 years      
Number of wastewater treatment systems facility operations in Middletown | Facility   3      
Capacity of wastewater treatment facilities | gal / d     3.8    
Number of protection plans offered to customers | Plan   3