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STOCK-BASED COMPENSATION PLAN - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Jul. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Apr. 30, 2020
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Unrecognized compensation cost   $ 17        
Stock options exercised (in shares)   5,138 81,400      
Intrinsic value of stock options exercised   $ 40 $ 558      
Exercise of option, tax expenses   $ 0 $ 26      
Granted (in shares)   0 0      
Former Non-continuing Directors, Officers And Employees | CALB            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Number of shares issued (in shares) 82,364          
Stock Options and Restricted Stock Units            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Stock-based compensation cost   $ 1,500 $ 895      
Restricted Stock Units            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Unvested outstanding (in shares)   977,048 691,011 1,048,899 637,899  
Vested (in shares)   197,948 110,084      
Unrecognized compensation expense   $ 11,300        
Weighted-average period for recognition of unrecognized compensation cost   3 years        
Equity instruments other than options, vested in period, fair value   $ 3,100 $ 1,800      
Tax (expense) benefit   (5) $ (53)      
Restricted Stock Units | CALB            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Number of shares withheld for taxes (in shares) (25,635)          
Restricted Stock Units | CALB            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Stock-based compensation cost $ 1,100          
Unrecognized compensation expense   $ 1,700        
Weighted-average period for recognition of unrecognized compensation cost   3 years 3 months 18 days        
Restricted Stock Units | Former Non-continuing Directors, Officers And Employees | CALB            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Number of shares issued (in shares) 123,123          
Restricted Stock Units | Former Continuing Directors, Officers And Employees | CALB            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Business combination, consideration transferred, attributable to post-combination replacement awards, number of shares (in shares) 185,878          
Number of shares issued (in shares) 295,512          
Stock-based compensation cost $ 3,400          
Restricted Stock | CALB            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Weighted average remaining term 4 years          
Restricted Stock | Former Non-continuing Directors, Officers And Employees | CALB            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Unvested outstanding (in shares) 77,436          
Restricted Stock | Former Continuing Directors, Officers And Employees | CALB            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Number of shares issued (in shares) 295,512          
Restricted Stock | Minimum | CALB            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Weighted average remaining term 2 months          
Restricted Stock | Maximum | CALB            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Weighted average remaining term 5 years          
2019 Plan            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Maximum shares approved for issuance (in shares)   3,400,000       2,200,000
2019 Plan | Stock Options            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Stock option expiration period   10 years        
Expiration period of vested options following termination of service affiliation   90 days        
2019 Plan | Restricted Stock Units | Minimum            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Restricted stock vesting period   1 year        
2019 Plan | Restricted Stock Units | Maximum            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Restricted stock vesting period   5 years