Note 11 - Share-Based Compenseation (Details) - Compensation cost charged to expense under all stock based incentive awards (USD $)	3 Months Ended		6 Months Ended
	Sep. 29, 2013	Sep. 23, 2012	Sep. 29, 2013	Sep. 23, 2012
Note 11 - Share-Based Compenseation (Details) - Compensation cost charged to expense under all stock based incentive awards [Line Items]
Share-based compensation expense	$ 191,000	$ 56,000	$ 338,000	$ 112,000
Employee Stock Option [Member]
Note 11 - Share-Based Compenseation (Details) - Compensation cost charged to expense under all stock based incentive awards [Line Items]
Share-based compensation expense	56,000	56,000	112,000	112,000
Restricted Stock [Member]
Note 11 - Share-Based Compenseation (Details) - Compensation cost charged to expense under all stock based incentive awards [Line Items]
Share-based compensation expense	$ 135,000	$ 0	$ 226,000	$ 0