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STOCKHOLDERS' EQUITY - Stock Based Compensation - RSUs (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Aug. 31, 2024
Sep. 30, 2024
Sep. 30, 2023
Jun. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Jun. 30, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
RSUs                      
STOCKHOLDERS' EQUITY                      
Number of shares granted   88,250 85,250   88,250 85,250          
Number of shares vested         39,811 74,988          
Number of shares forfeited         39,811 38          
Number of shares outstanding   256,740 251,300 166,050 256,740 251,300 168,490 248,112 241,076    
Performance cycle         3 years            
RSUs | Awards granted in 2024                      
STOCKHOLDERS' EQUITY                      
Number of shares granted         88,250            
Number of shares outstanding   88,250     88,250            
Aggregate fair value of the shares granted   $ 1,167,000     $ 1,167,000            
RSUs | Awards granted in 2023                      
STOCKHOLDERS' EQUITY                      
Number of shares granted               85,250      
Number of shares outstanding   85,250     85,250            
Aggregate fair value of the shares granted   $ 906,000     $ 906,000            
RSUs | Awards granted in 2022                      
STOCKHOLDERS' EQUITY                      
Number of shares granted                 85,350    
Number of shares forfeited         2,110            
Number of shares outstanding   83,240     83,240            
Performance cycle         3 years            
Aggregate fair value of the shares granted   $ 1,368,000     $ 1,368,000            
RSUs | Awards granted in 2021                      
STOCKHOLDERS' EQUITY                      
Number of shares granted                   80,700  
Number of shares vested         39,811            
Number of shares forfeited         40,889   40,889        
Performance cycle         3 years            
Payment of dividends to RSU grant holders $ 215,000                    
RSUs | Awards granted in 2020                      
STOCKHOLDERS' EQUITY                      
Number of shares granted                     75,026
Number of shares vested           74,988          
Number of shares forfeited       38              
RSUs | Awards granted in 2021 to 2024                      
STOCKHOLDERS' EQUITY                      
Performance cycle         3 years            
Accrual for dividend equivalent rights   $ 328,000     $ 328,000     $ 450,000      
ROC Awards | Awards granted in 2021                      
STOCKHOLDERS' EQUITY                      
Number of shares vested         39,811            
Number of shares forfeited         39,811            
ROC Awards | Awards granted in 2021 to 2024                      
STOCKHOLDERS' EQUITY                      
Weight         50.00% 50.00%          
ROC Awards | Awards granted in 2021 to 2024 | Minimum                      
STOCKHOLDERS' EQUITY                      
Average of annual ROC         6.00% 6.00%          
ROC Awards | Awards granted in 2021 to 2024 | Maximum                      
STOCKHOLDERS' EQUITY                      
Average of annual ROC         8.75% 8.75%          
TSR awards                      
STOCKHOLDERS' EQUITY                      
Service period         3 years            
TSR awards | Awards granted in 2024                      
Valuation assumptions                      
Expected life         3 years            
Dividend rate         7.03%            
Risk-free interest rate minimum         4.26%            
Risk-free interest rate maximum         5.17%            
Expected price volatility minimum         22.79%            
Expected price volatility maximum         24.80%            
TSR awards | Awards granted in 2021                      
STOCKHOLDERS' EQUITY                      
Number of shares forfeited         1,078            
TSR awards | Awards granted in 2021 to 2024                      
STOCKHOLDERS' EQUITY                      
Weight         50.00% 50.00%          
TSR awards | Awards granted in 2021 to 2024 | Minimum                      
STOCKHOLDERS' EQUITY                      
Average of annual TSR         6.00% 6.00%          
TSR awards | Awards granted in 2021 to 2024 | Maximum                      
STOCKHOLDERS' EQUITY                      
Average of annual TSR         11.00% 11.00%