Stock-Based Employee Compensation (Tables)

12 Months Ended

Dec. 27, 2016

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Stock Compensation Cost

	Fiscal Year Ended
	December 27,		December 29,		December 30,
	2016		2015		2014
	(in thousands)
Restaurant operating expenses	$	361	$	468	$	442
General and administrative costs		2,305		2,432		2,125
Total stock compensation cost	$	2,666	$	2,900	$	2,567

Summary Of Stock Option Activity

	Fiscal Year Ended December 27, 2016
	Shares		Weighted average exercise price		Weighted average remaining contractual term		Aggregate intrinsic value ($000's)
Outstanding at beginning of period		1,221,100	$	17.44
Exercised		(228,800)		13.00
Forfeited		(64,625)		20.50
Outstanding at end of period		927,675	$	18.33		6.2 years	$	1,455
Options exercisable at end of period		776,050	$	17.76		6.1 years	$	1,448

Summary Of Non-Vested Shares - Stock Options

	Fiscal Year Ended
	December 27, 2016
	Shares	Weighted average grant-date fair value
Non-vested stock options at beginning of period	506,500	$	7.25
Vested	(316,250)		6.60
Forfeited	(38,625)		7.92
Non-vested stock options at end of period	151,625	$	8.44

Restricted Stock [Member]

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary Of Restricted Stock Activity

	Fiscal Year Ended December 27, 2016
	Shares		Weighted average grant date fair value		Aggregate intrinsic value ($000's)
Outstanding at beginning of period		90,379	$	19.96
Granted		154,957		16.54
Vested		(38,701)		19.72
Forfeited		(61,116)		17.22
Outstanding at end of period		145,519	$	17.55	$	2,539

Performance Target [Member]

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary Of Performance Stock Unit Activity

	Fiscal Year Ended December 27, 2016
	Shares		Weighted average grant date fair value		Aggregate intrinsic value ($000's)
Outstanding at beginning of period		—	$	—
Granted		200,000		8.98
Outstanding at end of period		200,000	$	8.98	$	1,892