Note 6 - Other Real Estate Owned (Details)	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Period Increase (Decrease)	$ (6,800,000)
Percentage of Value Decreased Other Real Estate Owned	21.50%
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 24,701,000	$ 31,477,000
TEXAS
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	14,600,000	15,700,000
NEW YORK
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets		3,800,000
ILLINOIS
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	2,900,000	4,000,000
CALIFORNIA
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	891,000	4,100,000
Commercial Land [Member] | TEXAS
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 12,300,000	$ 12,300,000
Number of Real Estate Properties	3	3
Commercial Land [Member] | CALIFORNIA
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 478,000	$ 235,000
Number of Real Estate Properties	2	1
Medical Office Building [Member] | TEXAS
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 1,600,000	$ 1,600,000
Number of Real Estate Properties	1	1
Retail Site [Member] | TEXAS
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 761,000	$ 761,000
Number of Real Estate Properties	1
Retail Site [Member] | NEW YORK
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets		$ 1,100,000
Number of Real Estate Properties		1
Residential Property [Member] | NEW YORK
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 5,700,000	$ 2,700,000
Number of Real Estate Properties	2	1
Residential Property [Member] | ILLINOIS
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 153,000
Number of Real Estate Properties	1
Residential Property [Member] | CALIFORNIA
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets		$ 2,000,000
Number of Real Estate Properties		1
Multi Family Residences [Member] | ILLINOIS
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 2,400,000	$ 3,100,000
Number of Real Estate Properties	2	2
Office and Commercial Use Building [Member] | ILLINOIS
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 320,000
Number of Real Estate Properties	2
Office and Commercial Use Building [Member] | WASHINGTON
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 635,000	$ 3,800,000
Number of Real Estate Properties	1
Residential Construction [Member] | CALIFORNIA
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 414,000	$ 526,000
Number of Real Estate Properties	1	1
Commercial Use Building [Member] | CALIFORNIA
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets		$ 1,200,000
Number of Real Estate Properties		4
Residential Land [Member] | CALIFORNIA
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets		$ 243,000
Number of Real Estate Properties		1
Commercial Construction Loans [Member] | TEXAS
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets		$ 752,000
Number of Real Estate Properties		1
Shopping Center Construction Loans [Member] | TEXAS
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets		$ 304,000
Number of Real Estate Properties		1
Office Building [Member] | ILLINOIS
Note 6 - Other Real Estate Owned (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets		$ 921,000
Number of Real Estate Properties		1