Investments In Marketable Securities (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Dividend and Interest Income From Marketable Securities			$ 309,000	$ 519,000
Available-for-sale Securities, Gross Unrealized Gains			9,054,000		7,181,000
Marketable securities			13,142,000		11,364,000
Net realized gains and recoveries on sales of marketable securities	30,000	8,655,000	30,000	8,809,000
LTC Properties, Inc. [Member]
Common Shares Sold				381,000
Net realized gains and recoveries on sales of marketable securities				$ 154,000