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STOCK-BASED COMPENSATION, Non-vested Service-based Restricted Stock Unit Awards (Details) - USD ($)
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Service-Based Restricted Stock Units [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-based compensation expense $ 300,000 $ 200,000
2022 576,000  
2023 534,000  
2024 21,000  
2025 5,000  
Unrecognized Expense 1,136,000  
Performance-Based Restricted Stock Units [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-based compensation expense $ 0  
Restricted Stock and RSU [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares issued from vesting of restricted stock (in shares) 47,423 16,080