Annual report pursuant to Section 13 and 15(d)

STOCK BASED COMPENSATION (Details 2)

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STOCK BASED COMPENSATION (Details 2)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Employee Stock Option Plans
      
STOCK-BASED COMPENSATION      
Expiration period 10 years    
Number of shares of common stock authorized 24,577,963    
Options exercised during the period (in shares) 0 254,149 114,988
2011 Plan | Employee Stock Option Plans
      
STOCK-BASED COMPENSATION      
Additional shares authorized for grant 7,000,000 600,000  
Reduction in number of shares available for issuance subject to stock option or stock appreciation right 1 1  
Strike price as a percentage of fair value of common stock   100.00%  
Reduction in number of shares available for issuance subject to any other type of award other than stock option or stock appreciation right 1.64 1.4 1.7
Number of shares of common stock authorized 11,090,106    
Options exercised during the period (in shares) 0    
2011 Plan | Employee Stock Option Plans | Minimum
      
STOCK-BASED COMPENSATION      
Vesting period 0 years    
2011 Plan | Employee Stock Option Plans | Maximum
      
STOCK-BASED COMPENSATION      
Expiration period 10 years    
Vesting period 5 years    
2000 Plan | Employee Stock Option Plans
      
STOCK-BASED COMPENSATION      
Additional shares authorized for grant 675,000    
Reduction in number of shares available for issuance subject to stock option or stock appreciation right 1 1  
Strike price as a percentage of fair value of common stock   100.00%  
Reduction in number of shares available for issuance subject to any other type of award other than stock option or stock appreciation right 1.64 1.4 1.7
Number of shares of common stock authorized 12,299,675    
Options exercised during the period (in shares) 0    
2000 Plan | Employee Stock Option Plans | Minimum
      
STOCK-BASED COMPENSATION      
Vesting period 0 years    
2000 Plan | Employee Stock Option Plans | Maximum
      
STOCK-BASED COMPENSATION      
Vesting period 5 years    
2000 Plan | Performance shares
      
STOCK-BASED COMPENSATION      
Number of shares of common stock authorized   1,500,000 166,666
Directors' Plan | Employee Stock Option Plans
      
STOCK-BASED COMPENSATION      
Additional shares authorized for grant 100,000    
Number of shares of common stock authorized 1,235,000    
Number of shares of common stock authorized 1,188,182    
Options exercised during the period (in shares) 0    
Directors' Plan | Employee Stock Option Plans | Maximum
      
STOCK-BASED COMPENSATION      
Expiration period 10 years