v3.26.1
DERIVATIVES AND HEDGING (Schedule of cash flow hedging instruments, location) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Amount of gain (loss) recognized in OCI on derivative $ 231 $ (424)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 167 (592)
Net interest income 52,358 48,858
Cash Flow Hedging    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Amount of gain (loss) recognized in OCI on derivative 957 (1,530)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 282 736
Cash Flow Hedging | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Amount of gain (loss) recognized in OCI on derivative 610 (851)
Cash Flow Hedging | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Amount of gain (loss) recognized in OCI on derivative 347 (679)
Cash Flow Hedging | Location, Statement of Income, Balance [Axis]: us-gaap:InterestAndFeeIncomeLoansAndLeases | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 0 0
Cash Flow Hedging | Location, Statement of Income, Balance [Axis]: us-gaap:InterestExpenseSubordinatedNotesAndDebentures    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 38 116
Cash Flow Hedging | Location, Statement of Income, Balance [Axis]: us-gaap:InterestExpenseSubordinatedNotesAndDebentures | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 38 116
Cash Flow Hedging | Location, Statement of Income, Balance [Axis]: cac:InterestExpenseBorrowingsExcludingSubordinatedNotesandDebentures    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 244 620
Cash Flow Hedging | Location, Statement of Income, Balance [Axis]: cac:InterestExpenseBorrowingsExcludingSubordinatedNotesandDebentures | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 244 620
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Amount of gain (loss) recognized in OCI on derivative 957 (1,530)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 282 736
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Amount of gain (loss) recognized in OCI on derivative 610 (851)
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Amount of gain (loss) recognized in OCI on derivative 347 (679)
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Location, Statement of Income, Balance [Axis]: us-gaap:InterestAndFeeIncomeLoansAndLeases | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 0 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Location, Statement of Income, Balance [Axis]: us-gaap:InterestExpenseSubordinatedNotesAndDebentures    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 38 116
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Location, Statement of Income, Balance [Axis]: us-gaap:InterestExpenseSubordinatedNotesAndDebentures | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 38 116
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Location, Statement of Income, Balance [Axis]: cac:InterestExpenseBorrowingsExcludingSubordinatedNotesandDebentures    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 244 620
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Location, Statement of Income, Balance [Axis]: cac:InterestExpenseBorrowingsExcludingSubordinatedNotesandDebentures | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 244 620
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Amount of gain (loss) recognized in OCI on derivative 0 0
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 0 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Amount of gain (loss) recognized in OCI on derivative 0 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Amount of gain (loss) recognized in OCI on derivative 0 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Location, Statement of Income, Balance [Axis]: us-gaap:InterestAndFeeIncomeLoansAndLeases | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 0 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Location, Statement of Income, Balance [Axis]: us-gaap:InterestExpenseSubordinatedNotesAndDebentures    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 0 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Location, Statement of Income, Balance [Axis]: us-gaap:InterestExpenseSubordinatedNotesAndDebentures | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 0 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Location, Statement of Income, Balance [Axis]: cac:InterestExpenseBorrowingsExcludingSubordinatedNotesandDebentures    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 0 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Location, Statement of Income, Balance [Axis]: cac:InterestExpenseBorrowingsExcludingSubordinatedNotesandDebentures | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 0 0
Fair Value Hedging | Location, Statement of Income, Balance [Axis]: us-gaap:InterestAndFeeIncomeLoansAndLeases | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge (1,184) (3,939)
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments 1,181 4,856
Fair Value Hedging | Location, Statement of Income, Balance [Axis]: us-gaap:InterestExpenseSubordinatedNotesAndDebentures | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments 0 0
Fair Value Hedging | Location, Statement of Income, Balance [Axis]: cac:InterestExpenseBorrowingsExcludingSubordinatedNotesandDebentures | Interest rate contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments $ 0 $ 0