Note 5 - Real Estate Owned (REO), Held for Sale (Detail) (USD $)	3 Months Ended					12 Months Ended								12 Months Ended		3 Months Ended			3 Months Ended
	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2012	Jun. 30, 2011	Dec. 31, 2011 Senior Lien [Member]	Sep. 30, 2011 Condominium Units [Member] REO Held for Sale [Member]	Mar. 31, 2012 Condominium Units [Member] REO Held for Sale [Member]	Dec. 31, 2012 Single Family [Member]	Dec. 31, 2012 Interest Expense on Mortgages [Member]	Dec. 31, 2011 Interest Expense on Mortgages [Member]	Jun. 30, 2012 Commercial Property/Development Site Located in San Francisco, County, California [Member] REO Held for Sale [Member]	Jun. 30, 2012 Condominium Unit and 3 Tenants-in-Common Units [Member] REO Held for Sale [Member]	Dec. 31, 2011 By Foreclosure [Member]	Mar. 31, 2012 REO Held for Sale [Member]
Number of Real Estate Properties	4		9	38	3	4	9	2	2	1	2	1						2
Gain (Loss) on Disposition of Property						$ 39,000	$ (124,000)
Real Estate Acquired Through Foreclosure			15,959,000	15,700,000			15,959,000						260,000
Mortgage Loans on Real Estate, Prior Liens			107,000				107,000
Interest Expense						3,168,000	5,175,000							2,000	640,000
Gains (Losses) on Sales of Investment Real Estate	4,000			172,000		39,000	521,000									168,000	127,000		(6,000)
Impairment Recovery		14,000
Transfer Mortgage Payable																10,500,000
Mortgage Loans on Real Estate, Foreclosures			$ 107,000		$ 6,800,000