Consolidated Statement of Changes in Shareholders' Equity (Unaudited) (USD $)	Total	Preferred Stock	Common Stock [Member]	Treasury Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Retained Earnings
Balance beginning at Mar. 31, 2012	$ 327,499,000	$ 49,000	$ 368,000	$ (86,493,000)	$ 119,690,000	$ (3,555,000)	$ 297,440,000
Net income	34,440,000						34,440,000
Preferred stock cash dividends	(304,000)						(304,000)
Common stock cash dividends	(12,435,000)						(12,435,000)
Tax benefit from exercise of stock options	2,215,000				2,215,000
Exercise of stock options	1,474,000		4,000	(3,339,000)	4,809,000
Stock option compensation	2,412,000				2,412,000
Balance ending at Dec. 29, 2012	$ 355,301,000	$ 49,000	$ 372,000	$ (89,832,000)	$ 129,126,000	$ (3,555,000)	$ 319,141,000