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Stock option plan (Tables)
9 Months Ended
Jul. 31, 2019
Share-based Payment Arrangement [Abstract]  
Schedule of Stock Option Activity

The following table summarizes stock option activity for the nine-month period ended July 31, 2019:

 

   No. of Options  Weighted Average
   Outstanding  Exercise Price
Options outstanding beginning of period   305,780   $18.40 
Options granted during period   5,000    15.00 
Options forfeited/cancelled during period   (40)   18.45 
Options outstanding end of period   310,740   $18.35 
Options vested and expected to vest   303,990      
Options exercisable at end of period   218,860      
Schedule of Assumptions Used to Value Options Granted During Fiscal 2019

The estimated fair value of options granted during Fiscal 2019 was $2.43 per option. Such value was estimated on the grant date using a binomial lattice option pricing model using the following assumptions:

 

·Expected volatility – 27.69%
·Risk-free interest rate – 2.72%
·Imputed option life – 6.3 years
·Expected dividend yield – 3.82%