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STOCK-BASED COMPENSATION - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
May 17, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award contractual life     10 years      
2018 Equity Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based compensation expense $ 499,000 $ 402,000 $ 1,400,000 $ 995,000    
Expected term in years         7 years 2 months 1 day  
Remaining weighted-average vesting period     7 years      
2018 Equity Incentive Plan | Equity option            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award contractual life     10 years      
Shares available for grant 342,096   342,096      
Unrecognized compensation cost, nonvested awards $ 2,200,000   $ 2,200,000      
Remaining weighted-average vesting period     3 years 4 months 24 days      
2018 Equity Incentive Plan | Restricted stock awards            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares authorized (in shares)           326,000
Shares available for grant 109,410   109,410      
Unrecognized compensation cost, nonvested awards $ 3,300,000   $ 3,300,000      
Weighted-average vesting period     3 years 4 months 24 days      
2018 Equity Incentive Plan | Restricted stock awards | Officers And Employees            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period     5 years      
2018 Equity Incentive Plan | Equity option and restricted stock            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares authorized (in shares)           1,300,000
Maximum | 2018 Equity Incentive Plan | Restricted stock awards | Independent Director            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period     3 years      
Minimum | 2018 Equity Incentive Plan | Restricted stock awards | Independent Director            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period     1 year      
One year vesting | 2018 Equity Incentive Plan | Equity option            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Expected term in years     5 years 6 months      
One year vesting | 2018 Equity Incentive Plan | Equity option | Directors Excluding CEO            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period     1 year      
One year vesting | Minimum | 2018 Equity Incentive Plan | Equity option | Directors Excluding CEO            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period     1 year      
Two year vesting | 2018 Equity Incentive Plan | Equity option            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Annual award vesting percentage     20.00%      
Expected term in years     5 years 9 months      
Two year vesting | 2018 Equity Incentive Plan | Equity option | Directors Excluding CEO            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period     2 years      
Two year vesting | 2018 Equity Incentive Plan | Equity option | Officers And Employees            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period     5 years      
Three year vesting | 2018 Equity Incentive Plan | Equity option            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Expected term in years     6 years      
Three year vesting | 2018 Equity Incentive Plan | Equity option | Directors Excluding CEO            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period     3 years      
Three year vesting | Maximum | 2018 Equity Incentive Plan | Equity option | Directors Excluding CEO            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period     3 years      
Five year vesting | 2018 Equity Incentive Plan | Equity option            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Expected term in years     6 years 6 months      
Five year vesting | 2018 Equity Incentive Plan | Equity option | Directors Excluding CEO            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period     5 years