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Share-based Payments (Tables)
12 Months Ended
Mar. 31, 2024
Share-based Payments [Abstract]  
Black-Scholes Option Pricing Model Assumptions Used to Derive Weighted Average Fair Value of Stock Options Granted The following summarizes the Black-Scholes option-pricing model assumptions used to derive the weighted average fair value of the stock options granted during the year ended March 31, 2024.

   
Year Ended March 31,
   
2024
      
Weighted average risk free interest rate
   
4.53
%
Weighted average expected holding period (years)
   
6.57

Weighted average expected volatility
   
51.29
%
Weighted average expected dividend yield
   
-
 
Weighted average fair value of options granted
 
$
3.75
 
Stock Option Activity
The following is a summary of stock option transactions:

   
Number of
   
Weighted Average
 
 
 
Shares
   
Exercise Price
 
 
           
Outstanding at March 31, 2023
   
1,232,745
   
$
20.20
 
Granted
   
132,133
   
$
9.32
 
Exercised
   
-
 
$
-
 
Forfeited/Cancelled
   
(116,328
)
 
$
19.70
 
Expired
    (140,533 )   $
9.66  
Outstanding at March 31, 2024
   
1,108,017
   
$
20.29
 
Summary of Options Outstanding
The following summarizes information about the options outstanding at March 31, 2024:

     
Options Outstanding
 
Options Exercisable
                   Weighted                    Weighted    
             Weighted      Average              Weighted      Average    
             Average      Remaining    Aggregate          Average      Remaining    Aggregate
Range of
           Exercise      Life    Intrinsic          Exercise      Life    Intrinsic
Exercise price
   
Shares
   
Price
   
In Years
 
Value
 
Shares
   
Price
   
In Years
 
Value
$
9.32 to $17.38
     
341,027
   
$
12.99
     
7.43
 
 
   
208,894
   
$
15.32
     
6.14
 
 
$
19.00 to $22.73
     
410,633
     
19.58
     
4.78
 
 
   
410,633
     
19.58
     
4.78
 
 
$
22.93 to $27.40
     
164,133
     
26.35
     
2.55
 
 
   
164,133
     
26.35
     
2.55
 
 
$
28.68 to $31.13
     
192,224
     
29.60
     
1.95
 
 
   
192,224
     
29.60
     
1.95
 
 
         
1,108,017
   
$
20.29
     
4.77
$
-
   
975,884
   
$
21.78
     
4.14
$
-
Restricted Stock Units Activity
The following is a summary of non-vested RSUs:

 
 
Number of
Shares
   
Weighted Average
Grant Date Fair
Value
 
 
           
Outstanding at March 31, 2023
   
429,354
   
$
15.07
 
Granted
   
100,624
   
$
7.95
 
Vested
   
(210,485
)
 
$
15.58
 
Forfeited/Cancelled
   
(78,570
)
 
$
13.28
 
Outstanding at March 31, 2024
   
240,923
   
$
12.23
 
Monte Carlo Valuation Model Assumptions Used in Determining Fair Value of TSR Awards The following table summarizes the assumptions used in determining the fair value of the awards subject to market conditions:

   
Year Ended March 31,
 
   
2024
   
2023
   
2022
 
Risk free interest rate
   
4.32-4.35
%
   
3.35
%
   
0.47
%
Expected life in years
   
0.2-1.8
     
3
     
3
 
Expected volatility of MPA common stock
   
54.2-55.1
%
   
51.30
%
   
53.70
%
Expected average volatility of peer companies
   
-
%
   
62.70
%
   
59.30
%
Average correlation coefficient of peer companies
   
-
%
   
27.50
     
26.70
 
Expected dividend yield
   
-
     
-
     
-
 
Grant date fair value
 
$
3.57-8.37
   
$
16.02
   
$
26.89
 
Performance Stock Units Activity
The following is a summary of non-vested PSUs:

   
Number of
Shares
   
Weighted Average
Grant Date Fair
Value
 
Outstanding at March 31, 2023
   
192,696
   
$
17.48
 
Granted
   
585,583
   
$
4.50
 
Vested
   
-
   
$
-
 
Forfeited/Cancelled
   
(4,356
)
 
$
5.79
 
Outstanding at March 31, 2024
   
773,923
   
$
7.73