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Subsequent Events (Details) - Adirondack Bancorp, Inc. - USD ($)
$ / shares in Units, $ in Millions
4 Months Ended
Feb. 26, 2026
Jun. 30, 2026
Feb. 25, 2026
Forecast      
Subsequent Event [Line Items]      
Aggregate implied transaction value   $ 89.1  
Subsequent Event      
Subsequent Event [Line Items]      
Entity shares issuable per acquiree share 1.8610    
Cash payable per acquiree share (n dollars per share) $ 18.72    
Share Price     $ 34.43