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STOCK-BASED COMPENSATION (Tables)
 6 Months Ended
Jun. 30, 2015
STOCK-BASED COMPENSATION [Abstract]  
Assumptions used in estimating fair values of options granted
  
Six months ended
June 30, 2015
  
Six months ended
June 30, 2014
 
Expected volatility
  
79
%
  
79
%
Expected dividend yield
  
0.00
%
  
0.00
%
Weighted average risk-free interest rate
  
1.81
%
  
1.81
%
Expected life
 
5.50 years
  
5.50 years
 
Forfeiture rate
  
0
%
  
0
%
Summary of activity under stock option plans
  
Stock
Options
(In thousands)
  
Weighted Average Exercise Price
  
Remaining
Contractual Life
(in years)
  
Aggregate
Intrinsic
 Value
(in thousands)
 
Outstanding at December 31, 2014
  
1,503
  
$
0.85
     
Grants
  
430
   
0.79
     
Exercised
  
(34
)
  
(0.34
)
    
Forfeited, cancelled or expired
  
(254
)
  
0.95
     
Outstanding at June 30, 2015
  
1,645
  
$
0.83
   
7
  
$
150
 
                 
Exercisable at June 30, 2015
  
1,243
  
$
0.76
   
7
  
$
150