Summary of Significant Accounting Policies (Narrative) (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	1 Months Ended		12 Months Ended				3 Months Ended
	Sep. 30, 2011	Mar. 31, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010	Sep. 08, 2011	Sep. 30, 2012 Subsequent Event [Member]	Jun. 30, 2012 Land and Land Improvements [Member]	Jun. 30, 2011 Land and Land Improvements [Member]
Summary of Significant Accounting Policies [Line Items]
Restricted cash			$ 91
Stock repurchase program, shares authorized						4,051
Stock repurchase program, expiration date	May 2014
Dividends declared, per share			$ 0.20	$ 0.20	$ 0.20		$ 0.055
Dividends declared, date of declaration							Sep. 06, 2012
Dividends declared, date of record							Sep. 17, 2012
Dividends declared, date of distribution							Sep. 28, 2012
Common equivalent shares outstanding excluded from calculation of diluted income per common share because their effect would have been anti-dilutive			1,340	1,475	1,702
Property held for sale			3,752	3,752				3,752	3,752
Depreciation and amortization			1,317	1,034	798
Notional amount of interest rate swap designated as a cash flow hedge		$ 20,000	$ 15,500
Expiration date of interest rate swap designated as a cash flow hedge		Dec. 31, 2015