Note 12:        Stock-Based Compensation

From time to time, the Company grants stock options and restricted stock awards to directors, officers and employees. These awards are valued at the grant date by determining the fair value of the instruments, net of estimated forfeitures. The value of each award is amortized on a straight-line basis over the requisite service period.

Stock Options

The following table summarizes stock option activity for the nine months ended June 30, 2018:

The Company recognized compensation expense of $49,817 and $67,491 during the three months ended June 30, 2018 and 2017, respectively. The Company recognized compensation expense of $447,970 and $137,011 during the nine months ended June 30, 2018 and 2017, respectively, related to stock option and warrant extension awards granted to certain employees and officers based on the grant date fair value of the awards, net of estimated forfeitures.

At June 30, 2018, the Company has $335,992 of unrecognized compensation expense (net of estimated forfeitures) associated with stock option awards which the company expects to recognize as compensation expense through October of 2022.

The exercise price for stock options outstanding and exercisable outstanding at June 30, 2018 is as follows:

The following table summarizes information about the Company’s non-vested shares outstanding as of June 30, 2018:

Options were granted during fiscal 2017 and 2016, where the exercise price was less than the common stock price at the date of grant or where the exercise price was greater than the common stock price at the date of grant. There have been no options granted in fiscal 2018 to date. The assumptions used in calculating the fair value of stock options granted use the Black-Scholes option pricing model for options granted were as follows: