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Stock-Based Compensation
3 Months Ended
Mar. 31, 2015
Stock-Based Compensation [Abstract]  
Stock-Based Compensation

Stock-Based Compensation

During the quarter ended September 30, 2014, it was noted that the Company was applying the expected term of warrants granted in 2009 to certain consultants, rather than the contractual term, which is required by GAAP. The result of using contractual terms of the warrants was an increase to previously reported consultant compensation charges included in Operating Expenses in the Company's Consolidated Statement of Operations. The impact of this change to the prior period is not considered material to the period presented. As a consequence, the Company revised its financial presentation for the quarter ended March 31, 2014 in which consultant compensation charges have been increased by $20,922. This adjustment had no impact on the Company's use of cash or cash flow.

GAAP requires that all stock-based compensation be recognized as an expense in the financial statements and that such costs be measured at the fair value of the award.

The Company has granted options/warrants to consultants. These awards generally vest ratably over 12 to 60 months from the date of grant and the Company charges to operations quarterly the current market value of the options using the Black-Scholes method. During the three months ended March 31, 2015 and 2014 a charge (benefit) of $10,007 and ($58,388) respectively, and was recorded to operations reflecting the fair value of the options using the Black-Scholes method with the following weighted average assumptions:

    2015     2014
Risk free interest rate     1.7 %       1.7 %
Option Life     8.9 years         5.4 years  
Volatility     65 %       62 %

The Company did not grant any stock options to employees and directors during the three months ended March 31, 2015 and 2014.

In connection with the restricted stock grants to employees and directors, the Company charged $57,956 and $131,644 to operations during the three months ended March 31, 2015 and 2014 respectively. As of March 31, 2015, remaining unamortized compensation costs in connection with these restricted stock grants was $173,900 which will be recognized over the next nine month period.