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STOCK OPTIONS - STOCK COMPENSATION - Additional information (Details) - USD ($)
12 Months Ended
Feb. 16, 2021
May 20, 2020
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized     1,100,000  
Appreciation Award Description     1.5 shares for every share granted  
Share Based Compensation Stock Option Plan Authorized     100,000  
Share Based Compensation Arrangement By Share Based Payment Award Options Nonvested Percentage     100.00%  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount     $ 1,000  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition     2 months 12 days  
Stock-based compensation     $ 5,000 $ 41,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant     203,037 58,658
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Beginning Balance     178,499  
Fair Market value     110.00%  
Treasury Stock, Shares, Acquired     0  
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee     165,000  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant   1,250    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Beginning Balance   6,250    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value   $ 5.14    
Vesting period 5 years      
Grant Vest 20.00%      
Restricted stock-based compensation $ 159,000 $ 32,000    
Restricted stock-based compensation per annual $ 32,000      
Stock Appreciation Rights (SARs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee     1,000,000  
Stock Compensation Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee     65,000  
Non Employee Director [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Value of Shares Per Employee     $ 300,000  
Non Employee Directors Serving In Lead Role [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Value of Shares Per Employee     $ 450,000  
Employees And Directors [Member] | Common Class A        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized     500,000  
Chief Financial Officer [Member] | Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Available for Grant 25,000      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 6.36