Note 4 - Loans (Detail) - Secured Loans Past Maturity (USD $)	Jun. 30, 2012		Dec. 31, 2011		Jun. 30, 2011	Dec. 31, 2010
Number of loans (3) (4)	10	[1],[2]	9	[1],[2]
Loan balance	$ 72,147,000		$ 73,386,000		$ 177,707,000	$ 202,134,000
Percent of principal	100.00%		100.00%
Principal [Member] | Past Maturity [Member]
Loan balance	48,456,000		40,393,000
Advances [Member] | Past Maturity [Member]
Loan balance	6,861,000		6,829,000
Accrued Interest [Member] | Past Maturity [Member]
Loan balance	1,444,000		1,608,000
Past Maturity [Member]
Loan balance	$ 56,761,000		$ 48,830,000
Percent of principal	67.00%		55.00%

[1] The secured loans past maturity include seven and eight loans as of March 31, 2012 and December 31, 2011, respectively, also included in the secured loans in non-accrual status.

[2] The secured loans past maturity include eight and seven loans as of March 31, 2012 and December 31, 2011, respectively, also included in the secured loans delinquency category.