Note D - Investments in Real Estate Loans (Detail) - Non-Performing Loans (USD $)	6 Months Ended		12 Months Ended
	Jun. 30, 2012		Dec. 31, 2011
Number Of Non-Performing Loans	16		20
Allowance for Loan Losses	$ (1,629,000)	[1]	$ (5,485,000)	[1]
Nonperforming Loans [Member] | Commercial Loans [Member]
Number Of Non-Performing Loans	1		4
Balance	1,000,000		7,571,000
Allowance for Loan Losses	(1,000,000)		(3,724,000)
Net Balance			3,847,000
Nonperforming Loans [Member]
Number Of Non-Performing Loans	1		4
Balance	1,000,000		7,571,000
Allowance for Loan Losses	(1,000,000)	[1]	(3,724,000)	[1]
Net Balance			$ 3,847,000
Commercial Loans [Member]
Number Of Non-Performing Loans	15		17

[1] Please refer to Specific Reserve Allowances below.