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Preferred and Common Stock (Tables)
12 Months Ended
Apr. 30, 2020
Share-based Payment Arrangement [Abstract]  
Schedule of Restricted Stock and Restricted Stock Unit Grants
The following table summarizes the equity-related grants made during the three-year period ended April 30, 2020:
Date of Grant
Type of Grant
Shares Granted
Recipients
Vesting Date
Fair Value at Grant Date
 
 
 
 
 
 
June 1, 2017
Restricted Stock Units
63,699

Key Employees
June 1, 2020
$7,388
July 14, 2017
Restricted Stock Units (1)
61,126

Officers
June 15, 2020
$6,912
September 28, 2017
Restricted Stock
8,344

Non-Employee Board Members
Immediate
$920
March 29, 2018
Restricted Stock Units
2,150

Non-Employee Board Members
September 21, 2018
$236
May 24, 2018
Restricted Stock Units
88,846

Key Employees
May 24, 2021
$8,593
June 8, 2018
Restricted Stock Units (1)
75,402

Officers
June 8, 2021
$7,571
September 5, 2018
Restricted Stock Units
7,984

Non-Employee Board Members
2019 Annual Shareholders' Meeting Date
$920
June 4, 2019
Restricted Stock Units
75,959

Key Employees
June 4, 2022
$9,886
June 4, 2019
Restricted Stock Units (1)
59,579

Officers
June 4, 2022
$9,097
June 24, 2019
Restricted Stock Units (2)
32,786

CEO
Various (2)
$5,700
September 4, 2019
Restricted Stock Units
5,504

Non-Employee Board Members
2020 Annual Shareholders' Meeting Date
$919
December 23, 2019
Restricted Stock Units (3)
5,000

CEO
Various (3)
$788
Various (4)
Restricted Stock Units (4)
8,444

Officers
Various (4)
$1,368
Various (5)
Restricted Stock Units (5)
1,763

Officers
Various (5)
$354

(1) This grant of restricted stock units includes time-based, performance-based and market-based awards.  The performance-based awards included in the figure above represent a “target” amount; the final amount earned is based on the satisfaction of certain performance measures over a three-year performance period and will range from 0% to 200% of the “target". The market-based awards incorporate market conditions in determining fair value as of the grant date, and will also range from 0% to 200% of the "target". Total market-based expense of approximately $2.3 million for the 2017 grant, $2.6 million for the 2018 grant, and $3.1 million for the 2019 grant will be recognized on a straight-line basis over the vesting period, subject to acceleration for retirement provisions.
(2) This grant of restricted stock units is comprised of time-based awards that vest ratably on each June 23, 2020 through 2022, along with a market-based award vesting June 23, 2022. The market-based award incorporates market conditions in determining fair value on the grant date and will range from 0% to 200% of the target. Total market-based expense of approximately $1.8 million will be recognized on a straight-line basis over the vesting period.
(3) This grant of restricted stock units is comprised of performance-based awards which are calculated based upon targets achieved over performance periods from January 1, 2020 to December 31, 2020. If the performance targets are met, the units vest ratably on each January 15, 2021 through 2023.
(4) These grants of restricted stock units were issued to various officers throughout the fiscal year. The grants were comprised of time-based awards and vest in accordance with the agreements, ranging from January 2021 to January 2023.
(5) These grants of restricted stock units were issued to various officers throughout the fiscal year. The grants includes time-based, performance-based and market-based awards.  The performance-based awards included in the figure above represent a
“target” amount; the final amount earned is based on the satisfaction of certain performance measures over a three-year performance period and will range from 0% to 200% of the “target". The market-based awards incorporate market conditions in determining fair value as of the grant date, and will also range from 0% to 200% of the "target". Total market-based expense of approximately $177 will be recognized on a straight-line basis over the vesting period.
Schedule of Stock Options Activity Information concerning the issuance of stock options under the 2009 Plan is presented in the following table (no stock option awards have been granted under the 2018 Plan): 
 
Number
of option shares
 
Weighted
average option
exercise price
Outstanding at April 30, 2017
222,050

 
$
38.51

Exercised
(40,377
)
 
34.11

Outstanding at April 30, 2018
181,673

 
$
39.48

Exercised
(71,546
)
 
32.02

Forfeited
(300
)
 
25.26

Outstanding at April 30, 2019
109,827

 
$
44.39

Exercised
(66,638
)
 
44.39

Outstanding at April 30, 2020
43,189

 
$
44.39


Schedule of Restricted Stock Units Award Activity
Information concerning the issuance of restricted stock units under the 2018 Plan and the 2009 Plan is presented in the following table:
 
 
Unvested at April 30, 2017
303,400

Granted
126,980

Vested
(88,700
)
Forfeited
(2,699
)
Unvested at April 30, 2018
338,981

Granted
172,232

Vested
(104,166
)
Forfeited
(10,530
)
Performance Award Adjustments
(7,717
)
Unvested at April 30, 2019
388,800

Granted
189,035

Vested
(108,484
)
Forfeited
(25,146
)
Performance Award Adjustments
29,594

Unvested at April 30, 2020
473,799