v3.26.1
GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Sep. 30, 2025
Sep. 16, 2022
GOODWILL AND INTANGIBLE ASSETS            
Goodwill $ 4,237,000   $ 4,237,000   $ 4,237,000  
Intangible assets, net $ 1,051,000   $ 1,051,000   $ 1,294,000  
Estimated useful life 10 years   10 years      
Impairments of goodwill     $ 0 $ 0    
Amortization expense for other intangible assets $ 81,000 $ 93,000 $ 243,000 $ 278,000    
Citizens Bank of Cape Vincent            
GOODWILL AND INTANGIBLE ASSETS            
Goodwill           $ 4,200,000
Intangible assets, net           $ 2,500,000