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Stock-Based Compensation
6 Months Ended
Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock-Based Compensation

NOTE 8 — Stock-Based Compensation

 

The Company recognizes stock-based compensation in the financial statements for all share-based awards to employees, including grants of employee stock options, based on their fair values. The Company uses a binomial lattice valuation model to estimate the fair value of stock option grants. The binomial lattice model incorporates calculations for expected volatility, risk-free interest rates, employee exercise patterns and post-vesting employment termination behavior, and these factors affect the estimate of the fair value of the Company's stock option grants. Total stock-based compensation expense for the three and six months ended June 30, 2014 was $63,548 and $115,794, respectively. Total stock-based compensation expense for the three and six months ended June 30, 2013 was $57,557 and $151,292, respectively. In the three and six months ended June 30, 2014, 89,200 and 293,300 stock options were granted at a weighted average per share fair values estimated at $1.11 and $0.78, respectively.