Long-Term Debt (Details Textual) (USD $)	3 Months Ended		9 Months Ended				9 Months Ended		9 Months Ended				3 Months Ended
	Feb. 28, 2013	Feb. 23, 2012	Feb. 28, 2013	Feb. 23, 2012	Nov. 29, 2012	Feb. 29, 2008	Feb. 28, 2013 New Credit Agreement [Member]	Nov. 29, 2012 New Credit Agreement [Member]	Feb. 28, 2013 Subsequent Event [Member]	Mar. 19, 2008 Cash Flow Hedging [Member]	Feb. 28, 2013 Interest Rate Swap [Member]	Nov. 29, 2012 Term Loan [Member] New Credit Agreement [Member]	Feb. 28, 2013 Skirvin Hilton Hotel [Member]
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion	$ 28,000	$ 28,000	$ 85,000	$ 85,000					$ 14,000
Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion Net Of Tax	17,000	17,000	51,000	51,000					7,000
Derivative Fair Value Net Of Tax										338,000
Derivative Liability, Fair Value, Gross Liability										567,000
Line of Credit Facility, Amount Outstanding					175,000,000			225,000,000				50,000,000
Line Of Credit Term							5 years
Derivative, Description of Variable Rate Basis			one-month LIBOR
Derivative, Variable Interest Rate											0.25%
Derivative, Fixed Interest Rate	0.96%		0.96%								3.49%
Derivative, Amount of Hedged Item	25,000,000		25,000,000			25,000,000
Interest Rate Derivatives, at Fair Value, Net	0		0
Derivative, Notional Amount	25,000,000		25,000,000
Derivative Instrument Expiration Date			Jan. 22, 2018
Noncontrolling Interest, Ownership Percentage by Parent													60.00%
Debt Instrument, Face Amount													9,753,000
Extinguishment of debt	6,008,000	0	6,008,000	0
Debt Issuance Cost	3,745,000
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	40.00%		40.00%
Income Attributable To Noncontrolling Interest Percentage													100.00%
Mortgage Note Face Value													14,350,000
Mortgage Note Replaced Face Value	$ 15,093,000		$ 15,093,000