Stock-Based Compensation Plans (Tables)

12 Months Ended

Aug. 25, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

Total stock-based compensation expense for the past three fiscal years consisted of the following components:



	Year Ended
(In thousands)	August 25, 2018		August 26, 2017		August 27, 2016
Share awards:
Performance-based	$	2,525	$	69	$	807
Time-based	4,152		2,606		2,326
Stock options	502		164		11
Other⁽¹⁾	255		138		149
Total stock-based compensation	$	7,434	$	2,977	$	3,293


(1)	Includes stock-based compensation expense related to Board of Directors stock unit expense and ESPP expense. Directors may elect to defer all or part of their annual retainer into a deferred compensation plan. The plan allows them to defer into either money units or stock units and is more fully described in the Proxy Statement.

Schedule of Nonvested Share Activity [Table Text Block]

A summary of share award activity for Fiscal 2018, 2017 and 2016 is as follows:



	Year Ended
	August 25, 2018				August 26, 2017				August 27, 2016
	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
Beginning of year	243,769		$	23.61	283,881		$	20.45	163,420		$	20.83
Granted	167,781		42.54		156,801		28.13		240,270		19.72
Vested	(100,648	)	23.96		(159,979	)	22.66		(110,283	)	19.44
Cancelled	(25,711	)	29.64		(36,934	)	22.61		(9,526	)	20.28
End of year	285,191		$	34.08	243,769		$	23.61	283,881		$	20.45

Share-based Compensation, Stock Options, Activity [Table Text Block]

A summary of stock option activity for Fiscal 2018, 2017 and 2016 is as follows:



	Year Ended
	August 25, 2018			August 26, 2017				August 27, 2016
	Shares	Wtd. Avg. Exercise Price/Share		Shares		Wtd. Avg. Exercise Price/Share		Shares		Wtd. Avg. Exercise Price/Share
Outstanding at beginning of year	65,800	$	28.15	10,000		$	16.67	167,394		$	28.30
Options granted	72,710	44.40		63,800		29.92		10,000		16.67
Options cancelled	—	—		(8,000	)	27.89		(167,394	)	28.30
Outstanding at end of year	138,510	$	36.68	65,800		$	28.15	10,000		$	16.67

Exercisable at end of year	25,263	$	26.64	3,333		$	16.67	—		$	—
Vested and expected to vest at end of year	138,510	$	36.68	65,800		$	28.15	10,000		$	16.67

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The fair value of each option grant is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted-average valuation assumptions:



Valuation Assumptions⁽¹⁾	Fiscal 2018			Fiscal 2017			Fiscal 2016
Expected dividend yield	0.90		%	1.35		%	2.40		%
Risk-free interest rate ⁽²⁾	1.99		%	1.47		%	1.49		%
Expected life (in years) ⁽³⁾	5			5			5
Expected volatility ⁽⁴⁾	38.08		%	39.34		%	43.52		%
Weighted average fair value of options granted		$14.78			$9.58			$5.31


(1)	Forfeitures are recorded when they occur.


(2)	Risk-free interest rate is based on Treasury Securities constant maturity interest rate whose term is consistent with the expected life of the stock options.


(3)	Expected life of stock options is based on historical experience.


(4)	Expected stock price volatility is based on historical experience over a term consistent with the expected life of the stock options.