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Share-Based Compensation (Tables)
 12 Months Ended
Aug. 03, 2018
Share-Based Compensation [Abstract]  
LTPP Performance and Vesting Period
The following table summarizes the performance periods and vesting periods for the Company’s nonvested stock awards under its long-term performance plans at August 3, 2018:

Long-Term Performance Plan (“LTPP”)
 
Performance Period
 
Vesting Period
(in Years)
2018 LTPP
  
2018 – 2019
 
2 or 3
2017 LTPP
  
2017 – 2018
 
2 or 3
Outstanding Awards under LTPP
The following table summarizes the shares that have been accrued under the 2018 LTPP and 2017 LTPP at August 3, 2018:

2018 LTPP
  
8,892
 
2017 LTPP
  
23,511
 
Nonvested Stock Activity
A summary of the Company’s nonvested stock activity as of August 3, 2018, and changes during 2018 are presented in the following table:

Nonvested Stock
 
Shares
  
Weighted-Average Grant
Date Fair Value
 
Unvested at July 28, 2017
  
32,017
  
$
139.04
 
Granted
  
51,406
   
154.28
 
Vested
  
(38,889
)
  
153.66
 
Forfeited
  
(2,776
)
  
145.92
 
Unvested at August 3, 2018
  
41,758
  
$
143.73
 
Aggregate Fair Value of Non Vested Stock
The following table summarizes the total fair value of nonvested stock that vested for each of the three years:

  
2018
  
2017
  
2016
 
Total fair value of nonvested stock
 
$
5,976
  
$
14,700
  
$
8,418
 
Shares Accrued Under TSR RSUs Awards
The following table summarizes the shares that have been accrued for  rTSR RSUs awards under the 2018 and 2017 long-term incentive plans at August 3, 2018:

  
Shares
 
2018 rTSR RSUs
  
3,368
 
2017 rTSR RSUs
  
5,676
 
Stock Option Activity
A summary of the Company’s stock option activity as of August 3, 2018, and changes during 2018 are presented in the following table:
    
Fixed Options
 
Shares
  
Weighted-
Average
Price
 
Outstanding at July 28, 2017
  
4,000
  
$
32.86
 
Exercised
  
(4,000
)
  
32.86
 
Outstanding at August 3, 2018
  
--
   
--
 
Total Intrinsic Values of Options Exercised
The following table summarizes the total intrinsic values of options exercised during each of the three years:

  
2018
  
2017
  
2016
 
Total intrinsic values of options exercised*
 
$
466
  
$
1,070
  
$
917
 
*The intrinsic value for stock options is defined as the difference between the current market value and the grant price.
Components of Share-based Compensation Expense
The following table highlights the components of share-based compensation expense for each of the three years:

  
2018
  
2017
  
2016
 
Nonvested stock awards and units
 
$
6,052
  
$
6,654
  
$
10,277
 
MSU Grants
  
925
   
1,804
   
2,925
 
Total compensation expense
 
$
6,977
  
$
8,458
  
$
13,202
 
Unrecognized Compensation Cost, Nonvested Awards
The following table highlights the total unrecognized compensation expense related to the outstanding nonvested stock awards and nonvested stock units and the weighted-average periods over which the expense is expected to be recognized as of August 3, 2018:

  
Nonvested
Stock Awards
  
Nonvested
Stock Units
 
Total unrecognized compensation
 
$
3,189
  
$
1,341
 
Weighted-average period in years
  
1.82
   
1.71
 
Total Share-based Compensation Income Tax Benefit
The following table highlights the total income tax benefit recognized in the Consolidated Statements of Income for each of the three years:

  
2018
  
2017
  
2016
 
Total income tax benefit
 
$
774
  
$
2,740
  
$
3,819