Commitments and contingencies (Tables)

12 Months Ended

Dec. 26, 2014

Commitments and Contingencies Disclosure [Abstract]

Aggregate rental commitments under non-cancelable lease

The aggregate minimum rental commitments under noncancelable leases in effect at December 26, 2014 are as follows (in thousands):

Year Ending
2015	$	3,769
2016	2,032
2017	1,030
2018	769
2019	467
Thereafter	205
	$	8,272