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FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS (Tables)
3 Months Ended
Mar. 31, 2013
Fair Value Measurements and Financial Instruments [Abstract]  
Assets and Liabilities Measured at Fair Value on Recurring Basis Using Significant Observable Inputs (Level 2)

Assets and liabilities measured at fair value on a recurring basis using significant observable inputs (Level 2) from January 1, 2013 to March 31, 2013 are summarized as follows:

 

  Warrant
liability
(Level 2)
 
    
Balance at January 1, 2013 $354,000 
Change in fair value included in earnings  108,000 
Exercise of warrants  - 
Balance at March 31, 2013 $462,000 
Fair Value of Warrants Using Black-Scholes Option Pricing Model

The Company estimates the fair value of its warrants as of March 31, 2013 and December 31, 2012 using the Black-Scholes option pricing model using the following assumptions:

 

  March 31, 2013  December 31, 2012 
Series A and B Warrants        
Market price of common stock: $5.120  $4.390 
Exercise price:  3.50   3.50 
Remaining contractual life (years):  0.58   0.83 
Dividend yield:  -   - 
Expected volatility:  36.40%  51.41%
Risk-free interest rate:  0.10%  0.13%
Fair value – Series A and B Warrants $423,000  $319,000 
         
Underwriter Warrants        
Market price of common stock: $5.120  $4.390 
Exercise price:  4.80   4.80 
Remaining contractual life (years):  1.43   1.68 
Dividend yield:  -   - 
Expected volatility:  51.23%  61.26%
Risk-free interest rate:  0.17%  0.21%
Fair value – Underwriter Warrants $39,000  $35,000 
         
Fair value – Total $462,000  $354,000