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Capitalization (Details) - USD ($)
 1 Months Ended 12 Months Ended
May 31, 2024
May 31, 2023
Apr. 30, 2023
Mar. 31, 2023
Sep. 30, 2024
Apr. 30, 2023
May 31, 2022
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Jul. 31, 2023
Capitalization [Line Items]                      
Investment plan               $ 700,000      
Sale of stock units (in Shares)           1,000,000          
Preferred stock outstanding (in Shares)               16,000 20,000    
Convertible preferred stock no par value (in Dollars per share)               $ 7      
Preferred stock converted into common shares (in Shares)               51,300      
SRF loan amount               $ 140,000,000      
Expected maturity date         2044 years            
Remaining availability of funds for borrowing               $ 117,000,000      
Maturity date             Aug. 01, 2056        
Long term debt term               5 years      
Convertible preferred stock (in Dollars per share)               $ 7      
Carrying amount               $ 129,602,000 $ 133,374,000    
Advances for construction carrying amount               22,600,000 $ 21,300,000    
Long-Term Debt [Member]                      
Capitalization [Line Items]                      
Drawn amount               4,900,000      
SRF Loans [Member]                      
Capitalization [Line Items]                      
Drawn amount               $ 100,000      
CoBank [Member]                      
Capitalization [Line Items]                      
Percentage of interest rate                     6.17%
All Long Term Debt [Member]                      
Capitalization [Line Items]                      
Weighted average interest rate               3.64% 3.65%    
Long-Term Debt [Member]                      
Capitalization [Line Items]                      
Carrying amount               $ 229,800,000 $ 231,300,000    
Delaware SRF Loans [Member]                      
Capitalization [Line Items]                      
Remaining availability of funds for borrowing               8,300,000      
Minimum [Member]                      
Capitalization [Line Items]                      
Percentage of interest rate             2.70%        
Maximum [Member]                      
Capitalization [Line Items]                      
Percentage of interest rate             3.00%        
New Jersey Infrastructure Bank [Member]                      
Capitalization [Line Items]                      
Drawn amount               $ 300,000,000      
Tidewater [Member]                      
Capitalization [Line Items]                      
SRF loan amount $ 5,600,000                    
Interest rates, percentage 2.00%                    
Percentage of interest rate     2.00%     2.00%          
Interest, percentage   5.71%                  
Borrowed loan     $ 6,900,000                
Pinelands Water [Member]                      
Capitalization [Line Items]                      
Loan amount   $ 20,000,000                 $ 3,900,000
Pinelands Wastewater [Member]                      
Capitalization [Line Items]                      
Loan amount                     $ 3,600,000
FMB [Member]                      
Capitalization [Line Items]                      
Mortgage amount issued             $ 52,200,000        
Series 2022A [Member]                      
Capitalization [Line Items]                      
Mortgage amount designated             16,200,000        
Series 2022B [Member]                      
Capitalization [Line Items]                      
Mortgage amount designated             $ 36,000,000        
Common Stock [Member]                      
Capitalization [Line Items]                      
Granted shares (in Shares)               7,570 4,608 2,664  
Preferred Stock [Member]                      
Capitalization [Line Items]                      
Issuance of common stock               $ 400,000      
Preferred stock authorized (in Shares)               120,000      
Preferred stock outstanding (in Shares)                 16,000    
Preferred stock dividends                    
Investment Plan 2024 [Member] | Common Stock [Member]                      
Capitalization [Line Items]                      
Issuance of common stock               $ 1,000,000      
Outside Director Stock Compensation Plan [Member]                      
Capitalization [Line Items]                      
Maximum number of shares authorized for grant (in Shares)               100,000      
Shares remain available for future awards (in Shares)               34,283      
State Revolving Fund [Member]                      
Capitalization [Line Items]                      
Drawn amount               $ 1,700,000      
SRF loan amount         $ 2,200,000            
Interest rates, percentage         0.00%            
Private Placement FMB [Member]                      
Capitalization [Line Items]                      
Interest, percentage       5.24%              
Proceeds from private placement       $ 40,000,000              
Convertible Preferred Stock [Member]                      
Capitalization [Line Items]                      
Preferred stock outstanding (in Shares)               5,000 10,000    
Convertible preferred stock per shares (in Dollars per share)               $ 7      
Issuance of common stock (in Shares)               4,275      
Outstanding convertible stock, percentage               10.00%