Note 2 - Summary of Significant Accounting Policies (Detail) - The Company’s revenues (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 31, 2013	Dec. 23, 2012	Sep. 23, 2012	Jun. 24, 2012	Mar. 25, 2012	Dec. 25, 2011	Sep. 25, 2011	Jun. 26, 2011	Mar. 31, 2013	Mar. 25, 2012	Mar. 27, 2011
Revenue	$ 14,976	$ 15,025	$ 21,360	$ 20,182	$ 14,407	$ 14,800	$ 19,118	$ 17,897	$ 71,543	$ 66,222	$ 57,255
Domestic [Member]
Revenue									68,499	64,534	55,824
Non-Domestic [Member]
Revenue									$ 3,044	$ 1,688	$ 1,431