Annual report pursuant to Section 13 and 15(d)

Stockholders' equity (Tables)

v3.20.2
Stockholders' equity (Tables)
 12 Months Ended
Jul. 31, 2020
Stockholders' Equity Note [Abstract]  
Schedule of share-based payment award, stock options, valuation assumptions
    2020     2019     2018  
    Options     Weighted -
Average
Exercise
Price		     Options     Weighted -
Average
Exercise
Price		     Options     Weighted -
Average
Exercise
Price		  
Outstanding at beginning of year     2,351,040     $ 4.53       1,882,116     $ 4.96       2,132,995     $ 4.26  
New Grants     773,032     $ 2.40       715,321     $ 2.81       415,580     $ 5.57  
Exercised     —     $ —       (238,230 )   $ 2.69       (635,624 )   $ 2.98  
Expired or forfeited     (487,576 )   $ 3.71       (8,167 )   $ 6.55       (30,835 )   $ 5.97  
Outstanding at end of year     2,636,496     $ 4.05       2,351,040     $ 4.53       1,882,116     $ 4.99  
Exercisable at end of year     1,457,162     $ 5.10       1,342,564     $ 5.16       1,149,489     $ 4.28  
Weighted average fair value of options granted during year           $ 1.01             $ 1.07             $ 1.91  
Schedule of share based compensation stock options activity range of exercise prices
Grant Year   Options Granted   Exercise Price Range   Term
(years)		   Vesting Period (years)   FMV of options Granted/Per Share   Expected Life (years)   Expected Volatility %   Interest Rate %   Vested Shares at 7/31/2020
2020   773,032   $2.20 - $3.32   5   2 - 3   $0.86 - $1.34   3.25 – 3.5   53.77 – 66.24   0.27 – 1.2   —
2019   715,321   $2.80 - $3.21   5   2 - 3   $1.06 – $1.23   3.25 - 3.5   48.06 - 50.56   2.47- 2.96   359,411
2018   415,580   $4.42 - $8.36   5   2 - 3   $1.53 - $2.76   3.25 - 3.5   42.59 - 46.14   2.07- 2.79   247,150
Schedule of share based compensation stock options activity range of exercise prices
Range of Exercise prices   Shares     Weighted-Average
Remaining Contractual
Life in Years		   Weighted-Average
Exercise Price		  
$2.20 - $3.32     1,389,245     2.5   $         2.58  
$4.35 - $4.66     696,705     1.5   $ 4.46  
$5.52 - $8.36     550,546     2.0   $ 7.26  
      2,636,496              
Range of Exercise prices   Shares     Weighted-Average
Remaining Contractual
Life in Years		   Weighted-Average
Exercise Price		  
$2.20 - $3.32     359,411     3.4   $         2.80  
$4.35 - $4.66     558,372     1.5   $ 4.47  
$5.52 - $8.36     539,379     2.0   $ 7.28  
      1,457,162              
Schedule of nonvested performance-based units activity
 Grant Date   Total Grant     Forfeitures     Outstanding    

Fair Market Value

At Grant Date (000s)

  
7/31/2018     32,000       (4,000 )     28,000     $ 124  
1/3/2019     80,500       (10,500 )     70,000     $ 196  
2/25/2020     98,600       —       98,600     $ 217