Quarterly report pursuant to Section 13 or 15(d)

COMMON AND PREFERRED STOCK (Details)

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COMMON AND PREFERRED STOCK (Details) (USD $)
9 Months Ended 12 Months Ended
Sep. 30, 2013
Class
Dec. 31, 2012
COMMON AND PREFERRED STOCK [Abstract]    
Total shares of preferred and common stock authorized for issuance (in shares) 100,000,000  
Number of classes of shares 2  
Common stock, shares authorized (in shares) 95,000,000 95,000,000
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 5,000,000 5,000,000
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Changes in number of common stock shares [Roll forward]    
Beginning Balance (in shares) 63,532,622 63,330,421
Stock Based Compensation (in shares) 43,029 0
Stock Options Exercised (in shares) 0 10,500
Restricted Stock Grants (Note 6) (in shares) 299,401 890,379
Stock Repurchased (in shares) (2,036,383) 0
Other Surrenders (in shares) (41,994) (698,678)
Ending balance (in shares) 61,796,675 63,532,622
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock Based Compensation (in shares) 43,029 0
Stock Activity [Abstract]    
Common stock surrendered by certain employees to cover tax obligations (in shares) 4,297  
Fair value of common stock surrendered by certain employees to cover tax obligations $ 64,000  
Common stock surrendered by certain employees related to termination of employment (in shares) 37,697  
Stock Repurchase Program [Abstract]    
Stock repurchase program, amount approved 150,000,000  
Treasury stock, repurchased and retired 26.1  
Chief Executive Officer [Member]
   
Changes in number of common stock shares [Roll forward]    
Stock Based Compensation (in shares) 43,029  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock Based Compensation (in shares) 43,029  
Fair value of common stock issued, share based compensation $ 608,430