Quarterly report pursuant to Section 13 or 15(d)

NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule Fair Value Options (Details)

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NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule Fair Value Options (Details)
9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Weighted average assumptions used for fair valuation of stock options    
Method used for fair valuation of stock options

The fair value of each option grant on the date of grant is estimated using the Black-Scholes option-pricing utilizing the following weighted average assumptions

 
Expected option life (in years) 5 years 5 years
Expected stock price volatility (in percent)   45.86%
Expected dividend yield (in percent) 0.00% 0.00%
Minimum [Member]
   
Weighted average assumptions used for fair valuation of stock options    
Risk-free interest rates 0.78% 0.71%
Expected stock price volatility (in percent) 43.54%  
Maximum [Member]
   
Weighted average assumptions used for fair valuation of stock options    
Risk-free interest rates 1.24% 0.89%
Expected stock price volatility (in percent) 44.31%