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Stock-Based Compensation (Tables)
3 Months Ended
Dec. 31, 2019
Share-based Payment Arrangement [Abstract]  
Weighted Average Assumptions Used to Estimate Fair Value of Stock Option Grants

In addition to the exercise and grant date prices of the stock option awards, certain weighted average assumptions that were used to estimate the fair value of stock option grants are listed in the following table:

 

   Quarter Ended December 25, 2018
Incentive and
Non-Qualified Stock Options
 
     
Expected term (years)   7.5 
Expected volatility   70.65% to 70.80% 
Risk-free interest rate   3.01% to 3.10% 
Expected dividends   - 
Summary of Stock Option Activity Under Share Based Compensation Plan

The following table summarizes stock option activity for the quarter ended December 31, 2019 under all plans:

 

   Shares   Weighted
Average
Exercise Price
   Weighted Avg.
Remaining
Contractual Life (Yrs.)
 
             
Outstanding at beginning of year   703,164   $3.53      
Options exercised   (15,646)  $1.48      
Expired   (8,579)  $3.45      
Outstanding December 31, 2019   678,939   $3.57   5.9 
Exercisable December 31, 2019   478,730   $3.40   5.0 
Schedule of Non-vested Restricted Stock Activity

A summary of the status of non-vested restricted stock as of December 31, 2019 is presented below.

 

   Shares   Grant Date Fair
Value Per Share
        
Non-vested shares at beginning of year   165,275   $2.70 to $3.95
Granted   46,336   $1.54
Vested   (86,499)  $2.70 to $4.18
Non-vested shares at December 31, 2019   125,112   $2.70 to $4.18