Note 7 - Mortgages and Other Financing Receivables (Details) - Performing and Non-Performing Loans (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans	25
Amount (in Dollars)	$ 74,088	$ 70,704
Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans	24
Amount (in Dollars)	50,770
Non-Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans	1
Amount (in Dollars)	$ 23,318