Equity-Method Investment And Other Assets Equity-Method Investment And Other Assets (Details) (USD $)	6 Months Ended		9 Months Ended						6 Months Ended
	Jun. 30, 2013 properties	Jun. 30, 2012	Jun. 30, 2013 properties	Dec. 31, 2012	Jun. 30, 2013 Elder Trust [Member]	Apr. 30, 2013 Elder Trust [Member] properties	Jun. 30, 2013 Bickford Senior Living [Member] properties	Jun. 28, 2013 Bickford Senior Living [Member] properties	Jun. 30, 2013 Additional Paid-in Capital [Member]
Equity Method Investments	$ 9,261,000		$ 9,261,000	$ 8,353,000
Loan costs and prepaid expenses	2,804,000		2,804,000	1,837,000
Escrow deposit for real estate purchase	2,500,000		2,500,000	166,000	2,500,000
Replacement reserve and tax escrows - Fannie Mae	1,075,000		1,075,000	0
Accounts receivable and others assets	1,897,000		1,897,000	1,816,000
Equity-method investment and other assets	17,537,000		17,537,000	12,172,000
Number of Real Estate Properties	126		126			7	27	17
Assignment of net assets in equity-method investee	817,000	0							817,000
Variable Interest Entity, Financial or Other Support, Amount			0
Proceeds from Equity Method Investment, Dividends or Distributions	$ 0