Dividends (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	0 Months Ended									3 Months Ended		9 Months Ended
	Jul. 25, 2013	Apr. 25, 2013	Dec. 27, 2012		Dec. 07, 2012		Jul. 26, 2012	Apr. 26, 2012	Jan. 26, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Aug. 28, 2013	May 22, 2013	Aug. 23, 2012	May 23, 2012	Feb. 22, 2012
Dividends, Common Stock [Abstract]
Acclerated cash dividend per share					$ 0.0425	[1]
Payment of accelerated cash dividends			$ 2,497	[1]
Board of Directors declared a cash dividend	$ 0.05	$ 0.0425					$ 0.04	$ 0.04	$ 0.04	$ 0.05	$ 0.040	$ 0.0925	$ 0.12
Payment to Shareholders														$ 2,890	$ 2,482	$ 2,230	$ 2,453	$ 2,451

[1] The cash dividend declared on December 7, 2012 was an accelerated cash dividend in lieu of the quarterly dividend that the Company would have otherwise announced in January 2013 with its quarterly financial results for the fourth quarter of 2012, and that would have been paid in February of 2013.