Note 5 - Real Estate Owned (REO) (Details) (USD $)	12 Months Ended		6 Months Ended	3 Months Ended	1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2014	Jul. 31, 2014	Oct. 31, 2014
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Gains (Losses) on Sales of Other Real Estate (in Dollars)	$ 1,667,000	$ 521,000
Disposal Group, Including Discontinued Operation, Rental Income (in Dollars)	2,775,000	2,177,000
Revenues - Other [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Disposal Group, Including Discontinued Operation, Rental Income (in Dollars)	2,800,000	2,200,000
Tenants-in-common Units [Member] | Sold [Member] | San Francisco County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property		1			1
Condominium Complex [Member] | Rental Properties Held as Investment [Member] | Contra Costa [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	29		29	29
Condominium Complex [Member] | Property 1 [Member] | Rental Property Held for Sale [Member] | Los Angeles [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	126		126	126
Condominium Complex [Member] | Property 1 [Member] | Sold [Member] | Alameda County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	2		2	2
Condominium Complex [Member] | Property 1 [Member] | REO Held for Sale [Member] | Alameda County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	13		13	13
Condominium Complex [Member] | Property 1 [Member] | REO Held for Sale [Member] | Solano County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	8		8	8
Condominium Complex [Member] | Property 1 [Member] | REO Held for Sale [Member] | Los Angeles [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	126		126	126
Condominium Complex [Member] | Property 1 [Member] | Alameda County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	15		15	15
Gains (Losses) on Sales of Other Real Estate (in Dollars)	345,000
Condominium Complex [Member] | Property 2 [Member] | Rental Property Held for Sale [Member] | Los Angeles [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	72		72	72
Condominium Complex [Member] | Property 2 [Member] | Sold [Member] | Alameda County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	3		3	3
Condominium Complex [Member] | Property 2 [Member] | REO Held for Sale [Member] | Alameda County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	4		4	4
Condominium Complex [Member] | Property 2 [Member] | REO Held for Sale [Member] | Solano County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	6		6	6
Condominium Complex [Member] | Property 2 [Member] | REO Held for Sale [Member] | Los Angeles [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	72		72	72
Condominium Complex [Member] | Property 2 [Member] | Alameda County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	4		4	4
Gains (Losses) on Sales of Other Real Estate (in Dollars)			290,000
Condominium Complex [Member] | Rental Property Held for Sale [Member] | Alameda County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	13		13	13
Condominium Complex [Member] | Rental Property Held for Sale [Member] | Alameda [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	1		1	1
Condominium Complex [Member] | Rental Property Held for Sale [Member] | Solano County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	8		8	8
Condominium Complex [Member] | Rental Property Held for Sale [Member] | Contra Costa [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	6		6	6
Condominium Complex [Member] | Sold [Member] | San Francisco County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	2		2	2
Condominium Complex [Member] | Sold [Member] | Sutter [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property						9
Condominium Complex [Member] | Rental Properties Held as Investment [Member] | Alameda County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	32		32	32
Condominium Complex [Member] | Rental Properties Held as Investment [Member] | San Francisco County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	14		14	14
Condominium Complex [Member] | Rental Properties Held as Investment [Member] | Sacramento [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	257		257	257
Condominium Complex [Member] | REO Held for Sale [Member] | Contra Costa [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	6		6	6
Condominium Complex [Member] | REO Held for Sale [Member] | San Francisco County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	2		2	2
Condominium Complex [Member] | REO Held for Sale [Member] | Sutter [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	9		9	9
Condominium Complex [Member] | San Francisco County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Gains (Losses) on Sales of Other Real Estate (in Dollars)				933,000
Condominium Complex [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	128		128	128
Residential Single Family [Member] | Non-Rental Held for Sale [Member] | Orange County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Real Estate Properties	1		1	1
Residential Single Family [Member] | Non-Rental Held as Investment [Member] | Fresno County,California [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Real Estate Properties	5		5	5
Condominium Unit [Member] | Development Held for Sale [Member] | San Francisco County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	1		1	1
Condominium Unit [Member] | Sold [Member] | San Francisco County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property							1
Condominium Unit [Member] | REO Held for Sale [Member] | San Francisco County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	2		2	2
Condominium Unit [Member] | San Francisco County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property							2
Condominium Unit [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property		8			8
Tenants-in-common Units [Member] | Development Held for Sale [Member] | San Francisco County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	3		3	3
Tenants-in-common Units [Member] | Sold [Member] | San Francisco County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	3		3	3
Apartment Building [Member] | Sold [Member] | Solano County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	6		6	6
Apartment Building [Member] | Acquired Through Foreclosure [Member] | Solano County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Real Estate Properties		6			6
Apartment Building [Member] | Solano County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Real Estate Acquired Through Foreclosure (in Dollars)		399,000			399,000
Complex [Member] | Sold [Member] | Contra Costa [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	38		38	38				48
Complex [Member] | REO Held for Sale [Member] | Contra Costa [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	48		48	48
Complex [Member] | Contra Costa [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Gains (Losses) on Sales of Other Real Estate (in Dollars)	93,000
Multi-Family Building [Member] | Sold [Member] | San Francisco County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property		8			8
Multi-Family Building [Member] | Acquired Through Foreclosure [Member] | San Francisco County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property		4			4
Multi-Family Building [Member] | San Francisco County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Gains (Losses) on Sales of Other Real Estate (in Dollars)					521,000
Development Properties, Held as Investment [Member] | Los Angeles [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Units in Real Estate Property	1		1	1
Commercial [Member] | Three Year Lease [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Real Estate Properties	1		1	1
Commercial [Member] | REO Held as Investment [Member] | Contra Costa [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Real Estate Acquired Through Foreclosure (in Dollars)		1,500,000			1,500,000
Commercial [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Lessor Leasing Arrangements, Operating Leases, Term of Contract	3 years
Multi-family Complex [Member] | REO Held as Investment [Member] | Solano County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Real Estate Acquired Through Foreclosure (in Dollars)		$ 1,200,000			$ 1,200,000
Rental Property [Member] | REO Held as Investment [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Lessor Leasing Arrangements, Operating Leases, Term of Contract	1 year
Rental Property [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Real Estate Properties	6		6	6
Rental Property Held for Sale [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Real Estate Properties	6		6	6
Development Held for Sale [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Real Estate Properties	2		2	2
Rental Properties Held as Investment [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Real Estate Properties	7		7	7
Non-Rental Held as Investment [Member] | Stanislaus County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Area of Real Estate Property (in Acres)	14		14	14
Non-Rental Held as Investment [Member] | Marin County [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Area of Real Estate Property (in Acres)	13		13	13
Non-Rental Held as Investment [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Real Estate Properties	3		3	3
REO Held for Sale [Member]
Note 5 - Real Estate Owned (REO) (Details) [Line Items]
Number of Real Estate Properties		3			3