Consolidated Statements of Shareholders' Equity (Unaudited) (USD $) Share data in Thousands	Total	Accumulated Other Comprehensive Income (Loss) [Member]	Additional Paid-in Capital [Member]	Common Stock [Member]	Retained Earnings [Member]
Balance at Sep. 27, 2014	$ 178,883,000	$ (1,790,000)	$ 58,867,000	$ 18,377,000	$ 103,429,000
Balance (in shares) at Sep. 27, 2014				18,377
Net earnings	6,694,000				6,694,000
Stock options exercised, net (in shares)	23			21
Stock options exercised, net	176,000		155,000	21,000
Vesting of restricted stock units (in shares)				38
Vesting of restricted stock units	0		(38,000)	38,000
Compensation expense associated with stock-based plans	1,273,000		1,273,000
Excess tax benefits from stock-based compensation	147,000		147,000
Restricted stock units and stock options surrendered for withholding taxes payable	(248,000)		(248,000)
Cash dividends declared	(1,104,000)				(1,104,000)
Balance at Mar. 28, 2015	$ 185,821,000	$ (1,790,000)	$ 60,156,000	$ 18,436,000	$ 109,019,000
Balance (in shares) at Mar. 28, 2015				18,436