Note 18 - Commitments, Guarantees and Other Contingencies (Details) - Contractual Obligations of Time Deposit Accounts (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Note 18 - Commitments, Guarantees and Other Contingencies (Details) - Contractual Obligations of Time Deposit Accounts [Line Items]
Contractual obligations, Less than one year	$ 126,153
Contractual obligations, Over one through three years	40,715
Contractual obligations, Over three through five years	12,995
Contractual obligations, Over five years	7,146
Contractual obligations, Total	187,009
Real Property Operating Lease Obligations [Member]
Note 18 - Commitments, Guarantees and Other Contingencies (Details) - Contractual Obligations of Time Deposit Accounts [Line Items]
Contractual obligations, Less than one year	1,733
Contractual obligations, Over one through three years	3,329
Contractual obligations, Over three through five years	3,347
Contractual obligations, Over five years	7,115
Contractual obligations, Total	15,524
Time Deposit Accounts [Member]
Note 18 - Commitments, Guarantees and Other Contingencies (Details) - Contractual Obligations of Time Deposit Accounts [Line Items]
Contractual obligations, Less than one year	124,154
Contractual obligations, Over one through three years	37,130
Contractual obligations, Over three through five years	9,605
Contractual obligations, Over five years	31
Contractual obligations, Total	170,920
Contractually Required Interest Payments on Time Deposits [Member]
Note 18 - Commitments, Guarantees and Other Contingencies (Details) - Contractual Obligations of Time Deposit Accounts [Line Items]
Contractual obligations, Less than one year	266
Contractual obligations, Over one through three years	256
Contractual obligations, Over three through five years	43
Contractual obligations, Total	$ 565