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Note 5 - DERIVATIVES AND HEDGING ACTIVITIES - Unhedged Swaptions (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Derivative [Line Items]    
Derivatives $ 207,775 $ 186,781
Swaptions | Unhedged Derivatives    
Derivative [Line Items]    
Notional Amount 408,801  
Derivatives 134 998
Derivative Instrument One, Maturing 2025 | Unhedged Derivatives    
Derivative [Line Items]    
Notional Amount $ 77,600  
Strike Rate 2.13%  
Derivatives   37
Derivative Instrument Two, Maturing 2025 | Unhedged Derivatives    
Derivative [Line Items]    
Notional Amount $ 33,100  
Strike Rate 2.62%  
Derivatives   54
Derivative Instrument Three, Maturing 2025 | Unhedged Derivatives    
Derivative [Line Items]    
Notional Amount $ 28,254  
Strike Rate 2.12%  
Derivatives   48
Derivative Instrument Four, Maturing 2025 | Unhedged Derivatives    
Derivative [Line Items]    
Notional Amount $ 66,247  
Strike Rate 2.63%  
Derivatives   33
Derivative Instrument One, Maturing 2026 | Unhedged Derivatives    
Derivative [Line Items]    
Notional Amount $ 20,750  
Strike Rate 2.63%  
Derivatives $ 7 102
Derivative Instrument Two, Maturing 2026 | Unhedged Derivatives    
Derivative [Line Items]    
Notional Amount $ 41,700  
Strike Rate 2.13%  
Derivatives $ 3 77
Derivative Instrument Three, Maturing 2026 | Unhedged Derivatives    
Derivative [Line Items]    
Notional Amount $ 36,546  
Strike Rate 2.14%  
Derivatives $ 3 70
Derivative Instrument Four, Maturing 2026 | Unhedged Derivatives    
Derivative [Line Items]    
Notional Amount $ 18,453  
Strike Rate 2.64%  
Derivatives $ 7 93
Derivative Instrument Five, Maturing 2026 | Unhedged Derivatives    
Derivative [Line Items]    
Notional Amount $ 16,100  
Strike Rate 2.64%  
Derivatives $ 38 140
Derivative Instrument Six, Maturing 2026 | Unhedged Derivatives    
Derivative [Line Items]    
Notional Amount $ 29,800  
Strike Rate 2.14%  
Derivatives $ 22 116
Derivative Instrument Seven, Maturing 2026 | Unhedged Derivatives    
Derivative [Line Items]    
Notional Amount $ 25,971  
Strike Rate 2.14%  
Derivatives $ 20 103
Derivative Instrument Eight, Maturing 2026 | Unhedged Derivatives    
Derivative [Line Items]    
Notional Amount $ 14,280  
Strike Rate 2.64%  
Derivatives $ 34 $ 125