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STOCKHOLDERS' EQUITY (Tables)
 12 Months Ended
Dec. 31, 2021
STOCKHOLDERS' EQUITY [Abstract]  
Transactions Pertaining to Restricted Stock
The following is a summary of transactions pertaining to restricted stock:

   
Shares
    
Weighted
Average Grant
Date Fair Value
Per Share
  
Nonvested restricted stock outstanding at December 31, 2019
    
595,426
    
$
3.15
  
Granted
    
1,319,734
      
2.68
  
Cancelled
    
-
   
-
  
Vested
    
(343,001
)
    
3.40
  
Nonvested restricted stock outstanding at December 31, 2020
    
1,572,159
      
2.77
  
Granted
    
679,331
      
5.99
  
Cancelled
    
-
      
-
  
Vested
    
(507,644
)
    
3.30
  
Nonvested restricted stock outstanding at December 31, 2021
    
1,743,846
      
3.89
  
Transactions Pertaining to Option Plans
The fair value of the stock options used to compute stock-based compensation is the estimated present value at the date of grant using the Black-Scholes option pricing model.  The following is a summary of transactions pertaining to stock options:

   
Shares
    
Weighted
Average
Exercise Price
Per Share
  
Weighted
Average
Remaining
Contractual
Term
  
Aggregate
Intrinsic
Value
  
Outstanding January 1, 2019
    
139,000
    
$
12.14
  
 2.53 years
  
$
-
  
Cancelled
    
(23,000
)
    
20.15
        
-
  
                           
Outstanding December 31, 2019
    
116,000
      
10.56
  
 1.83 years
    
-
  
Cancelled
    
(35,000
)
    
16.95
        
-
  
                           
Outstanding December 31, 2020
    
81,000
      
7.79
  
 1.17 years
    
-
  
Cancelled
    
-
   
-
            
                           
Outstanding December 31, 2021
    
81,000
      
7.79
  
 0.17 years
    
-
  
                           
Vested as of December 31, 2021
    
81,000
      
7.79
  
 0.17 years
    
-
  
                           
Exercisable as of December 31, 2021
    
81,000
      
7.79
  
 0.17 years
    
-