Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 26, 2017	Sep. 27, 2016
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	12,427,280	12,282,625
Common stock, shares outstanding	12,427,280	12,282,625