Organization and Significant Accounting Policies - Schedule of Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 24, 2016	Dec. 25, 2015
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Outstanding, Shares, Beginning balance	315,648
Granted, Shares	0
Exercised, Shares	0
Cancelled, Shares	(16,989)
Outstanding, Shares, Ending balance	298,659	315,648
Options exercisable, Shares	298,659
Weighted Average Exercise Price, Outstanding, Beginning balance	$ 10.02
Granted, Weighted Average Exercise Price	0
Exercised, Weighted Average Exercise Price	0
Canceled, Weighted Average Exercise Price	8.94
Weighted Average Exercise Price, Outstanding, Ending balance	10.09	$ 10.02
Options exercisable, Weighted Average Exercise Price	$ 10.09
Weighted Average Remaining Contractual Life (years), Outstanding	1 year 7 months 10 days	2 years 22 days
Weighted Average Remaining Contractual Life (years), Options exercisable	1 year 7 months 10 days
Aggregate Intrinsic Value, Outstanding, Beginning balance	$ 216
Aggregate Intrinsic Value, Outstanding, Ending balance	249	$ 216
Aggregate Intrinsic Value, Options exercisable	$ 249