Note 10 - Allowance for Loan Losses and Credit Quality Information (Details) - Non-Accrual Loans (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Note 10 - Allowance for Loan Losses and Credit Quality Information (Details) - Non-Accrual Loans [Line Items]
Non-accruing loans	$ 12,291	$ 17,496
1-4 Family [Member]
Note 10 - Allowance for Loan Losses and Credit Quality Information (Details) - Non-Accrual Loans [Line Items]
Non-accruing loans	2,056	1,602
Residential Developments [Member]
Note 10 - Allowance for Loan Losses and Credit Quality Information (Details) - Non-Accrual Loans [Line Items]
Non-accruing loans	8,340	14,146
Commercial Real Estate Other [Member]
Note 10 - Allowance for Loan Losses and Credit Quality Information (Details) - Non-Accrual Loans [Line Items]
Non-accruing loans	463	403
Consumer [Member]
Note 10 - Allowance for Loan Losses and Credit Quality Information (Details) - Non-Accrual Loans [Line Items]
Non-accruing loans	707	737
Construction Development [Member]
Note 10 - Allowance for Loan Losses and Credit Quality Information (Details) - Non-Accrual Loans [Line Items]
Non-accruing loans	87	93
Commercial Business Other [Member]
Note 10 - Allowance for Loan Losses and Credit Quality Information (Details) - Non-Accrual Loans [Line Items]
Non-accruing loans	$ 638	$ 515