v3.25.2
JUNIOR SUBORDINATED DEBENTURES - Additional Information (Details)
 3 Months Ended
Jun. 30, 2025
USD ($)
item
Mar. 31, 2025
USD ($)
JUNIOR SUBORDINATED DEBENTURES    
Maximum number of consecutive quarters for deferred payment of each debenture | item 20  
Debentures issued to grantor trusts $ 27,100,000 $ 27,100,000
Common securities issued by grantor trusts $ 836,000 $ 836,000
Riverview Bancorp Statutory Trust I    
JUNIOR SUBORDINATED DEBENTURES    
Description of variable rate three-month Chicago Mercantile Exchange (“CME”) Term SOFR  
Interest basis spread on variable rate 1.36%  
Riverview Bancorp Statutory Trust II    
JUNIOR SUBORDINATED DEBENTURES    
Description of variable rate three-month CME Term SOFR  
Interest basis spread on variable rate 1.35%  
Merchants Bancorp Statutory Trust I    
JUNIOR SUBORDINATED DEBENTURES    
Description of variable rate three-month CME Term SOFR  
Interest basis spread on variable rate 3.10%