Note 11 - Other Assets - Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Investments in affordable housing partnerships	$ 4,217	$ 4,815
Federal Home Loan Bank of San Francisco stock	4,465	4,465
Interest receivable	4,044	3,881
Qualified Zone Academy Bonds	4,740	2,740
Prepaid expenses	772	731
Investment in unconsolidated trusts	310	310
Other	1,808	1,309
Total	$ 20,356	$ 18,251