3. Stock Options and Warrants

The Company granted stock options to certain of our employees under two plans. The 1996 Stock Option Plan was adopted in 1996 (“1996 Plan”) and had options granted under it through May 29, 2006. In 2006, the Board of Directors approved and the shareholders ratified the 2006 Stock Incentive Plan (“2006 Plan”).

As determined by the members of the Compensation Committee, the Company generally grants options under the 2006 Plan at the estimated fair value at the date of grant, based upon all information available to it at the time.

The Company recognizes compensation costs only for those shares expected to vest on a straight-line basis over the requisite service period of the awards, generally, the option vesting term of six months to two years. The fair values of option awards granted in the three months and six months ended June 30, 2011 and 2010, were estimated using a Black-Scholes option pricing model under the following assumptions:

2006 Stock Incentive Plan

The Company has a stock incentive plan, which became effective May 18, 2006, and expires May 17, 2016 (the “2006 Plan”). The 2006 Plan provides for the granting of equity awards to key employees, including officers and directors. The maximum number of shares for which equity awards may be granted under the 2006 Plan is 950,000. Options under the 2006 Plan expire no later than ten years from the date of grant or when employment ceases, whichever comes first, and vest over periods determined by the Board of Directors. The average vesting periods for options granted to employees under the 2006 Plan in the three months ended June 30, 2011 and 2010, were eighteen months. The average vesting periods for options granted to employees under the 2006 Plan in the six months ended June 30, 2011 and 2010, were nineteen months and fourteen months, respectively. The exercise price of each option equals at least the quoted market price of the Company’s stock on the date of grant.

1996 Stock Option Plan

The 1996 Plan provided for the granting of options to purchase shares of our common stock to key employees, including officers and directors. The maximum number of shares for which options could be granted under the 1996 Plan was 3,075,000. Options expire no later than ten years from the date of grant or when employment ceases, whichever comes first, and vest over periods determined by the Board of Directors. There were 563,000 and 565,500 unexpired exercisable options remaining from the 1996 Plan at June 30, 2011 and December 31, 2010, respectively.

The status of the options issued under the foregoing option plans as of June 30, 2011, and changes during the six months ended June 30, 2011 and 2010, were as follows:

The following table summarizes information about options at June 30, 2011:

Nonvested stock awards as of June 30, 2011 and changes during the six months ended June 30, 2011, were as follows:

As of June 30, 2011 and 2010, unrecognized compensation cost associated with non-vested share-based employee and non-employee compensation totaled $4,085 and $5,146, respectively, which are expected to be recognized over weighted average periods of 9 months and 6 months, respectively.

Warrants

The Board of Directors may also grant warrants to directors, employees and others. There were no warrants issued or exercised in the six months ended June 30, 2011, nor in fiscal year 2010. As of June 30, 2011 and 2010, there were no outstanding warrants. .