Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Earnings Per Share [Abstract]
Net income	$ 7,133	$ 14,844	$ 13,065	$ 24,467
Weighted-average common shares outstanding (basic)	16,696,000	17,858,000	16,990,000	17,917,000
Effect of dilutive securities from equity awards (shares)	56,000	7,000	50,000	51,000
Weighted-average common shares outstanding (diluted)	16,752,000	17,865,000	17,040,000	17,968,000
Basic earnings per common share	$ 0.43	$ 0.83	$ 0.77	$ 1.37
Diluted earnings per common share	$ 0.43	$ 0.83	$ 0.77	$ 1.36
Non-dilutive equity awards excluded from computation of weighted-average common shares outstanding (shares)	2,995,383	3,426,856	3,021,373	2,613,124