Note 12 - Commitments and Contingencies (Detail) (USD $)	1 Months Ended	5 Months Ended	12 Months Ended				3 Months Ended				12 Months Ended				5 Months Ended				12 Months Ended
	Jan. 19, 2011	Mar. 31, 2013	Mar. 31, 2013	Mar. 25, 2012	Mar. 27, 2011	Dec. 01, 2009	Jun. 23, 2013 Subsequent Event [Member]	Oct. 29, 2012 Closed for Varying Periods of Time [Member] Branded Menu Location [Member]	Oct. 29, 2012 Closed for Varying Periods of Time [Member]	Oct. 29, 2012 Remain Closed [Member] Branded Menu Location [Member]	Mar. 31, 2013 Initial Term [Member] Minimum [Member]	Mar. 31, 2013 Initial Term [Member] Maximum [Member]	Mar. 31, 2013 Renewal Option [Member] Minimum [Member]	Mar. 31, 2013 Renewal Option [Member] Maximum [Member]	Mar. 31, 2013 Write-off of Property and Equipment [Member]	Mar. 31, 2013 Unsalable Inventories [Member]	Mar. 31, 2013 Unutilized Insurance Advance [Member]	Mar. 31, 2013 Reimbursable On-going Busineses Expenses [Member]	Mar. 31, 2013 Minimum [Member]	Mar. 31, 2013 Maximum [Member]
Operating Lease Term											5 years	20 years	5 years	20 years
Operating Leases, Rent Expense, Net			$ 1,102,000	$ 1,248,000	$ 1,176,000
Operating Leases, Rent Expense, Sublease Rentals			353,000	229,000	311,000
Operating Leases, Rent Expense, Contingent Rentals			399,000	151,000	165,000
Operating Leases, Rent Expense, Minimum Rentals			973,000
Purchase Commitment, Remaining Minimum Amount Committed		5,000,000	5,000,000
Percent of Estimated Hot Dogs Usage							51.00%
Other Commitment		2,000,000	2,000,000
Loss Contingency, Damages Awarded, Value	4,900,000
Guarantor Obligations, Current Carrying Value		228,000	228,000	227,000		228,000
Number of Restaurants								18	78	1
Loss from Catastrophes		1,197,000													449,000	42,000
Expected Monthly Losses Relating to Ongoing Operational Costs and Clean-up																			100,000	200,000
Proceeds from Insurance Settlement, Investing Activities			1,026,000				3,400,000
Accrued Liabilities, Current		4,320,000	4,320,000	4,664,000													130,000
Accounts and Other Receivables, Net, Current		$ 6,917,000	$ 6,917,000	$ 6,535,000														$ 301,000