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Note 19 - Parent Company (Details) - Condensed Statement of Income and Comprehensive Income (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
INCOME |  |  |  |  |  |  |  |  |  |  |
Total income |  |  |  |  |  |  |  |  | $ 27,874 us-gaap_InterestAndDividendIncomeOperating | $ 28,178 us-gaap_InterestAndDividendIncomeOperating | $ 28,746 us-gaap_InterestAndDividendIncomeOperating
EXPENSES |  |  |  |  |  |  |  |  |  |  |
Interest expense | 1,005 us-gaap_InterestExpense | 999 us-gaap_InterestExpense | 1,033 us-gaap_InterestExpense | 1,033 us-gaap_InterestExpense | 1,136 us-gaap_InterestExpense | 1,328 us-gaap_InterestExpense | 1,357 us-gaap_InterestExpense | 1,429 us-gaap_InterestExpense | 4,070 us-gaap_InterestExpense | 5,250 us-gaap_InterestExpense | 6,447 us-gaap_InterestExpense
Income before income tax benefit | 2,438 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 2,447 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 2,025 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 2,262 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 2,321 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 2,386 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 2,161 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 2,139 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 9,172 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 9,007 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 7,943 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Income tax benefit | 550 us-gaap_IncomeTaxExpenseBenefit | 529 us-gaap_IncomeTaxExpenseBenefit | 414 us-gaap_IncomeTaxExpenseBenefit | 499 us-gaap_IncomeTaxExpenseBenefit | 500 us-gaap_IncomeTaxExpenseBenefit | 521 us-gaap_IncomeTaxExpenseBenefit | 476 us-gaap_IncomeTaxExpenseBenefit | 482 us-gaap_IncomeTaxExpenseBenefit | 1,992 us-gaap_IncomeTaxExpenseBenefit | 1,979 us-gaap_IncomeTaxExpenseBenefit | 1,662 us-gaap_IncomeTaxExpenseBenefit
NET INCOME | 1,888 us-gaap_NetIncomeLoss | 1,918 us-gaap_NetIncomeLoss | 1,611 us-gaap_NetIncomeLoss | 1,763 us-gaap_NetIncomeLoss | 1,821 us-gaap_NetIncomeLoss | 1,865 us-gaap_NetIncomeLoss | 1,685 us-gaap_NetIncomeLoss | 1,657 us-gaap_NetIncomeLoss | 7,180 us-gaap_NetIncomeLoss | 7,028 us-gaap_NetIncomeLoss | 6,281 us-gaap_NetIncomeLoss
Comprehensive Income (Loss) |  |  |  |  |  |  |  |  | 11,965 us-gaap_ComprehensiveIncomeNetOfTax | (600)us-gaap_ComprehensiveIncomeNetOfTax | 7,131 us-gaap_ComprehensiveIncomeNetOfTax
Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |
INCOME |  |  |  |  |  |  |  |  |  |  |
Dividends from subsidiary bank |  |  |  |  |  |  |  |  | 3,142 us-gaap_EquityMethodInvestmentDividendsOrDistributions / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,198 us-gaap_EquityMethodInvestmentDividendsOrDistributions / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,327 us-gaap_EquityMethodInvestmentDividendsOrDistributions / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Other |  |  |  |  |  |  |  |  | 8 us-gaap_OtherIncome / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 5 us-gaap_OtherIncome / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 8 us-gaap_OtherIncome / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Total income |  |  |  |  |  |  |  |  | 3,150 us-gaap_InterestAndDividendIncomeOperating / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,203 us-gaap_InterestAndDividendIncomeOperating / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,335 us-gaap_InterestAndDividendIncomeOperating / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
EXPENSES |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | 304 us-gaap_InterestExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 361 us-gaap_InterestExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 417 us-gaap_InterestExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Other |  |  |  |  |  |  |  |  | 816 us-gaap_OtherExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 475 us-gaap_OtherExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 594 us-gaap_OtherExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Total expenses |  |  |  |  |  |  |  |  | 1,120 us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 836 us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 1,011 us-gaap_CostsAndExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Income before income tax benefit |  |  |  |  |  |  |  |  | 2,030 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 1,367 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 1,324 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Income tax benefit |  |  |  |  |  |  |  |  | (378)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (283)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (342)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Income before equity in undistributed net income of subsidiaries |  |  |  |  |  |  |  |  | 2,408 us-gaap_IncomeLossFromContinuingOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 1,650 us-gaap_IncomeLossFromContinuingOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 1,666 us-gaap_IncomeLossFromContinuingOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Equity in undistributed net income of subsidiaries |  |  |  |  |  |  |  |  | 4,772 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 5,378 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 4,615 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
NET INCOME |  |  |  |  |  |  |  |  | 7,180 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 7,028 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 6,281 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Comprehensive Income (Loss) |  |  |  |  |  |  |  |  | $ 11,965 us-gaap_ComprehensiveIncomeNetOfTax / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ (600)us-gaap_ComprehensiveIncomeNetOfTax / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 7,131 us-gaap_ComprehensiveIncomeNetOfTax / dei_LegalEntityAxis = us-gaap_ParentCompanyMember

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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6519514 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Comprehensive Income -URI http://asc.fasb.org/extlink&oid=35737396 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e557-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=6518256 + Details
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