Consolidated Statements Of Stockholders' Equity (USD $) In Thousands	Class A Common Stock [Member] Common Stock [Member]	Class B Common Stock [Member] Common Stock [Member]	Capital In Excess Of Par Value [Member]	Accumulated Distributions In Excess Of Earnings [Member]	Total
Balance at Dec. 31, 2011	$ 116		$ 192,005	$ (73,197)	$ 118,924
Net income				3,726	3,726
Deferred compensation			(5,299)		(5,299)
Issuance of shares of common stock for deferred compensation	1	3	5,295		5,299
Issuance of shares of Class B common stock		42	52,694		52,736
Amortization of deferred compensation			555		555
Retirement of shares of Class A common stock			(66)		(66)
Distributions				7,889	7,889
Balance at Sep. 30, 2012	$ 117	$ 45	$ 245,184	$ (77,360)	$ 167,986