STOCKHOLDERS' EQUITY (Tables)
 12 Months Ended
Dec. 31, 2015
STOCKHOLDERS' EQUITY [Abstract]  
Summary of 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, 2013
  
1,247,946
  
$
6.77
 
Granted
  
337,100
   
3.50
 
Cancelled
  
(178,792
)
  
6.47
 
Vested
  
(480,435
)
  
5.36
 
Nonvested restricted stock outstanding at December 31, 2014
  
925,819
   
5.04
 
         
Granted
  
234,651
   
2.28
 
Cancelled
  
(354,462
)
  
4.97
 
Vested
  
(355,514
)
  
5.00
 
Nonvested restricted stock outstanding at December 31, 2015
  
450,494
   
3.69
 
Summary of transactions pertaining to option plans
The following is a summary of transactions pertaining to the option plans:

  
Shares
  
Weighted
Average
Exercise Price
Per Share
 
Weighted
Average
Remaining
Contractual
Term
 
Aggregate
Intrinsic Value
 
Outstanding December 31, 2012
  
655,875
  
$
14.72
 
 4.89 years
 
$
-
 
Cancelled
  
(108,750
)
  
14.64
    
-
 
              
Outstanding December 31, 2013
  
547,125
   
14.73
 
 4.56 years
  
-
 
Cancelled
  
(122,958
)
  
18.49
    
-
 
              
Outstanding December 31, 2014
  
424,167
   
13.65
 
 4.18 years
  
-
 
Cancelled
  
(178,000
)
  
15.20
      
              
Outstanding December 31, 2015
  
246,167
   
12.52
 
 3.98 years
  
-
 
              
Vested or expected to vest as of December 31, 2015
  
246,167
   
12.52
 
 3.98 years
  
-
 
              
Exercisable as of December 31, 2015
  
246,167
   
12.52
 
 3.98 years
  
-
 
Summary of options outstanding
The following table presents a summary of options outstanding at December 31, 2015:
 
   
At December 31, 2015
 
   
Stock Options Outstanding
  
Stock Options Exercisable
 
Range of Exercise Prices
  
Shares
  
Contractual
Weighted
Average life
(years)
  
Weighted
Average Price
  
Shares
  
Weighted
Exercise Price
 
$
4.00-$13.99
   
172,667
   
4.24
  
$
9.57
   
172,667
  
$
9.57
 
$
14.00-$19.99
   
42,500
   
2.48
   
18.61
   
42,500
   
18.61
 
$
20.00-$25.00
   
31,000
   
4.60
   
20.62
   
31,000
   
20.62
 
                       
     
246,167
   
3.98
   
12.52
   
246,167
   
12.52