ACCOUNTS RECEIVABLE (Details) (USD $)	9 Months Ended
	Feb. 28, 2012	May 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and notes receivable - current, gross	$ 6,942,000	$ 7,531,000
Past due days for franchise fee revenue not recognized	60 days past due
Unearned income for franchise fees	2,100,000	1,200,000
Due for third-party gift card sales	1,000,000	1,300,000
Due from our distributor for purchases of lobster	1,000,000	700,000
Amounts due relating to insurance claims	600,000	1,200,000
Rebates Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and notes receivable - current, gross	846,000	1,055,000
Amounts Due from Franchisees [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and notes receivable - current, gross	2,625,000	2,506,000
Other Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and notes receivable - current, gross	$ 3,471,000	$ 3,970,000