Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 24, 2016	Mar. 26, 2016
Consolidated Balance Sheets [Abstract]
Class C convertible preferred stock par value	$ 1.50	$ 1.50
Class C convertible preferred stock, conversion value	$ 0.064	$ 0.064
Class C convertible preferred stock shares authorized	150,000	150,000
Class C convertible preferred stock shares issued	32,500	32,500
Class C convertible preferred stock shares outstanding	32,500	32,500
Common stock par value	$ 0.01	$ 0.01
Common stock shares authorized	65,000,000	65,000,000
Common stock shares issued	38,621,670	38,556,678
Treasury stock shares	6,322,417	6,316,652