Note 10 - Share-Based Compensation (Detail) - Stock options transactions (USD $)	3 Months Ended	6 Months Ended
	Mar. 25, 2012	Sep. 23, 2012	Sep. 25, 2011
Options outstanding at March 25, 2012 (in Shares)	622,000
Options outstanding at March 25, 2012	$ 13.21
Options outstanding at March 25, 2012	3 years 18 days	3 years 40 days
Options outstanding at March 25, 2012 (in Dollars)	$ 4,849,000
Options outstanding at September 23, 2012 (in Shares)		512,000
Options outstanding at September 23, 2012		$ 12.57
Options outstanding at September 23, 2012	3 years 18 days	3 years 40 days
Options outstanding at September 23, 2012 (in Dollars)		10,111,000
Options exercisable at September 23, 2012 (in Shares)		378,875
Options exercisable at September 23, 2012		$ 10.75
Options exercisable at September 23, 2012		2 years 328 days
Options exercisable at September 23, 2012 (in Dollars)		8,172,000
Granted (in Shares)		0
Granted		$ 0	$ 17.75
Granted		0 years
Granted		$ 0
Expired (in Shares)		0
Expired		$ 0
Expired		0 years
Expired		$ 0
Exercised (in Shares)		(110,000)
Exercised		$ 16.21
Exercised		0 years
Exercised (in Dollars)		$ 0