Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]
Impaired loans	$ 42,673	$ 44,695
Performing Troubled Debt Restructured Loans [Member] | Performing Troubled Debt Restructured Loans [Member]
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]
Troubled debt restructurings	16,436
Impaired loans	16,436
Performing Troubled Debt Restructured Loans [Member] | Non Performing Troubled Debt Restructured Loans [Member]
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]
Troubled debt restructurings		26,744
Impaired loans		26,744
Non Performing Troubled Debt Restructured Loans [Member] | Performing Troubled Debt Restructured Loans [Member]
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]
Troubled debt restructurings	5,852
Impaired loans	5,852
Non Performing Troubled Debt Restructured Loans [Member] | Non Performing Troubled Debt Restructured Loans [Member]
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]
Troubled debt restructurings		2,184
Impaired loans		2,184
Non Performing Other Loans [Member] | Performing Troubled Debt Restructured Loans [Member]
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]
Impaired loans	4,244
Non Performing Other Loans [Member] | Non Performing Troubled Debt Restructured Loans [Member]
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]
Impaired loans		6,580
Performing Other Loans [Member] | Performing Troubled Debt Restructured Loans [Member]
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]
Impaired loans	16,141
Performing Other Loans [Member] | Non Performing Troubled Debt Restructured Loans [Member]
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]
Impaired loans		9,187
Performing Troubled Debt Restructured Loans [Member]
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]
Troubled debt restructurings	22,288
Impaired loans	42,673
Non Performing Troubled Debt Restructured Loans [Member]
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]
Troubled debt restructurings		28,928
Impaired loans		$ 44,695