Stockholder's Equity (Dividends) (Details) (USD $)	12 Months Ended
	Mar. 31, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Oct. 01, 2011	Jul. 02, 2011	Mar. 31, 2011
Stockholders' Equity Note [Abstract]
Dividends, rate (per share)	$ 0.08	$ 0.08	$ 0.08	$ 0.08	$ 0.07	$ 0.07	$ 0.07	$ 0.07
Dividends, aggregate value	$ 1,291,000	$ 1,304,000	$ 1,323,000	$ 1,355,000	$ 1,223,000	$ 1,223,000	$ 1,238,000	$ 1,263,000	$ 1,075,000
Maximum regular quarterly dividends per year permitted under credit agreement	$ 15,000