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Note 24 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value On a Recurring Basis (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Assets measured at fair value on a recurring basis | $ 589,851 | $ 535,385
Liabilities measured at fair value on a recurring basis | 747 | 1,447
Derivative Financial Instruments, Liabilities [Member] | Mortgage Banking Derivative [Member] |  |
Liabilities measured at fair value on a recurring basis | 55 | 30
Derivative Financial Instruments, Liabilities [Member] | Interest Rate Swap [Member] |  |
Liabilities measured at fair value on a recurring basis | 692 | 1,417
Fair Value, Inputs, Level 1 [Member] |  |
Assets measured at fair value on a recurring basis |  | 115
Liabilities measured at fair value on a recurring basis |  |
Fair Value, Inputs, Level 1 [Member] | Derivative Financial Instruments, Liabilities [Member] | Mortgage Banking Derivative [Member] |  |
Liabilities measured at fair value on a recurring basis |  |
Fair Value, Inputs, Level 1 [Member] | Derivative Financial Instruments, Liabilities [Member] | Interest Rate Swap [Member] |  |
Liabilities measured at fair value on a recurring basis |  |
Fair Value, Inputs, Level 2 [Member] |  |
Assets measured at fair value on a recurring basis | 588,019 | 535,027
Liabilities measured at fair value on a recurring basis | 692 | 1,417
Fair Value, Inputs, Level 2 [Member] | Derivative Financial Instruments, Liabilities [Member] | Mortgage Banking Derivative [Member] |  |
Liabilities measured at fair value on a recurring basis |  |
Fair Value, Inputs, Level 2 [Member] | Derivative Financial Instruments, Liabilities [Member] | Interest Rate Swap [Member] |  |
Liabilities measured at fair value on a recurring basis | 692 | 1,417
Fair Value, Inputs, Level 3 [Member] |  |
Assets measured at fair value on a recurring basis | 1,832 | 243
Liabilities measured at fair value on a recurring basis | 55 | 30
Fair Value, Inputs, Level 3 [Member] | Derivative Financial Instruments, Liabilities [Member] | Mortgage Banking Derivative [Member] |  |
Liabilities measured at fair value on a recurring basis | 55 | 30
Fair Value, Inputs, Level 3 [Member] | Derivative Financial Instruments, Liabilities [Member] | Interest Rate Swap [Member] |  |
Liabilities measured at fair value on a recurring basis |  |
US Government Agencies Debt Securities [Member] |  |
Assets measured at fair value on a recurring basis | 106,142 | 56,975
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Assets measured at fair value on a recurring basis |  |
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Assets measured at fair value on a recurring basis | 106,142 | 56,975
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Assets measured at fair value on a recurring basis |  |
Residential Mortgage Backed Securities [Member] |  |
Assets measured at fair value on a recurring basis | 326,239 | 297,241
Residential Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Assets measured at fair value on a recurring basis |  |
Residential Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Assets measured at fair value on a recurring basis | 326,239 | 297,241
Residential Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Assets measured at fair value on a recurring basis |  |
US States and Political Subdivisions Debt Securities [Member] |  |
Assets measured at fair value on a recurring basis | 95,930 | 118,381
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Assets measured at fair value on a recurring basis |  |
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Assets measured at fair value on a recurring basis | 95,930 | 118,381
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Assets measured at fair value on a recurring basis |  |
Corporate Debt Securities [Member] |  |
Assets measured at fair value on a recurring basis | 9,579 | 14,938
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Assets measured at fair value on a recurring basis |  |
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Assets measured at fair value on a recurring basis | 8,079 | 14,938
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Assets measured at fair value on a recurring basis | 1,500 |
Equity Securities [Member] |  |
Assets measured at fair value on a recurring basis | 218 | 334
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Assets measured at fair value on a recurring basis |  | 115
Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Assets measured at fair value on a recurring basis |  |
Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Assets measured at fair value on a recurring basis | 218 | 219
Residential Mortgage Loan Long Term [Member] |  |
Assets measured at fair value on a recurring basis | 51,629 | 47,492
Residential Mortgage Loan Long Term [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Assets measured at fair value on a recurring basis |  |
Residential Mortgage Loan Long Term [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Assets measured at fair value on a recurring basis | 51,629 | 47,492
Residential Mortgage Loan Long Term [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Assets measured at fair value on a recurring basis |  |
Mortgage Banking Derivative [Member] |  |
Assets measured at fair value on a recurring basis | 114 | 24
Mortgage Banking Derivative [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Assets measured at fair value on a recurring basis |  |
Mortgage Banking Derivative [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Assets measured at fair value on a recurring basis |  |
Mortgage Banking Derivative [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Assets measured at fair value on a recurring basis | $ 114 | $ 24

X
- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Aggregation of the liabilities reported on the balance sheet measured at fair value on a recurring basis by the entity. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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- Details
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