2. STOCK-BASED COMPENSATION

In March 2008, the Company’s shareholders approved the 2008 Stock Option Plan (the “Plan”) to replace the 1997 Outside Director Stock Option Plan and the 1997 Employee Stock Option Plan. The purpose of the Plan was to promote our long-term interests by providing a means of attracting and retaining officers, directors and key employees. The Compensation Committee administered the Plan and approved the particular officers, directors or employees eligible for grants. Under the Plan, employees were granted options to purchase our common shares at an exercise price equal to the fair market value of the common shares of the end of the trading day prior to the date of the grant. Generally, options granted vest and become exercisable in three equal installments commencing one year from date of grant and expire upon the earlier of the employee’s termination of employment with us, or ten years from the date of grant. Restricted shares are valued as the average of the high and low on the day prior to the date of the grant. The Plan is described more fully in Note 9 in the Notes to the Consolidated Financial Statements in our Form 10‑K for the fiscal year ended September 30, 2020. In March 2018 , the Company’s shareholders approved the amendment and restatement of the Plan in the form of the Amended and Restated 2018 Equity Incentive Plan and in March 2020 our shareholders approved a further amendment to increase the number of shares issuable under the amended and restated plan by 700 and to make corresponding changes to the number of shares issuable as incentive options and as restricted stock or pursuant to restricted stock units (as amended, the “Equity Plan”). The Company currently grants equity awards from the Equity Plan. The purpose of the Equity Plan is to promote our long-term interests by providing a means of attracting and retaining officers, directors and key employees. The maximum number of new common shares that may be granted under the Equity Plan is 700 shares plus the remaining shares from the 2008 Stock Option Plan. At December 31, 2020, 680 shares remained available for grants under the Plan.

We expense the estimated fair value of stock options over the vesting periods of the grants. We recognize expense for awards subject to graded vesting using the straight-line attribution method. The Company adopted a change in accounting policy effective October 1, 2020 for forfeitures. Prior to October 1, 2020, stock-based compensation expense was reduced for estimated forfeitures, and if necessary, an adjustment was recognized in future periods if actual forfeitures differed from those estimates. The accounting change was made prospectively; therefore, stock-based compensation for equity grants subsequent to October 1, 2020, will not be reduced for estimated forfeitures as expense will be adjusted in the period that a forfeiture occurs. The Company feels that this accounting change will more accurately account for expense relating to forfeitures. The Company has assessed the cumulative effect of this change in accounting policy and has deemed the impact to be immaterial; therefore, an adjustment has not been recorded to beginning retained earnings. Stock based compensation expense for the three months ended December 31, 2020 was $181. Stock based compensation expense for the three months ended December 31, 2019 was $81.

A summary of our stock option activity for the three months ended December 31, 2020 is as follows (in thousands except for share prices):


		Weighted-
		Average
	Options	Exercise
	(shares)	Price
Outstanding - October 1, 2020	712	$	2.21
Granted	22	$	5.19
Exercised	(23)	$	1.90
Forfeited	(5)	$	3.41
Expired	(1)	$	1.78
Outstanding - December 31, 2020	704	$	2.31

Exercisable at December 31, 2020	318	$	1.75

The weighted average estimated fair value of stock options granted for the three months ended December 31, 2020 and December 31, 2019 were $3.41 and $3.14, respectively. The weighted-average assumptions used to compute the fair value of the options granted in the three months ended December 31, 2020 were as follows:


Risk-free interest rate	0.41	%
Dividend yield	0.00	%
Volatility of the expected market price of the Company's common shares	76.56	%
Expected life of the options (years)	5.95

As of December 31, 2020, our total unrecognized compensation cost related to non-vested stock options was $515 and is expected to be recognized over a weighted-average service period of 2.0 years.

During the three months ended December 31, 2020, we granted a total of 117 restricted shares to members of the Company’s leadership team, including 40 restricted shares granted on December 29, 2020 to the CEO under his employment agreement. A summary of our restricted share activity for the three months ended December 31, 2020 is as follows:


		Weighted-
		Average
	Restricted	Grant Date
	Shares	Fair Value
Outstanding – September 30, 2020	128	$	3.88
Granted	117	$	7.86
Forfeited	—		—
Outstanding – December 31, 2020	245	$	5.77

As of December 31, 2020, our total unrecognized compensation cost related to non-vested restricted shares was $1,160 and is expected to be recognized over a weighted-average service period of 2.1 years.