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Note 3 - Loans and Allowance for Loan Losses - Loans Modified as Troubled Debt Restructurings (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 USD ($) | Sep. 30, 2015 USD ($) | Sep. 30, 2016 USD ($) | Sep. 30, 2015 USD ($)
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Commercial and Industrial [Member] |  |  |  |
Number of Contracts | 0 | 0 | 1 | 9
Pre- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 20,000 | $ 1,876,000
Post- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 20,000 | $ 1,901,000
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |  |
Number of Contracts | 0 | 0 | 0 | 0
Pre- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 0 | $ 0
Post- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 0 | $ 0
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Real Estate Owner Occupied Loan [Member] |  |  |  |
Number of Contracts | 0 | 0 | 1 | 0
Pre- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 167,000 | $ 0
Post- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 167,000 | $ 0
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |  |
Number of Contracts | 0 | 0 | 0 | 0
Pre- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 0 | $ 0
Post- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 0 | $ 0
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Real Estate Multi Family and Residentia lRental Loan [Member] |  |  |  |
Number of Contracts | 0 | 0 | 0 | 0
Pre- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 0 | $ 0
Post- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 0 | $ 0
Commercial Portfolio Segment [Member] | Originated Loan [Member] |  |  |  |
Number of Contracts | 0 | 0 | 2 | 9
Pre- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 187,000 | $ 1,876,000
Post- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 187,000 | $ 1,901,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Commercial and Industrial [Member] |  |  |  |
Number of Contracts | 0 | 0 | 0 | 2
Pre- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 0 | $ 286,000
Post- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 0 | $ 286,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |  |
Number of Contracts | 0 | 0 | 0 | 0
Pre- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 0 | $ 0
Post- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 0 | $ 0
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Real Estate Owner Occupied Loan [Member] |  |  |  |
Number of Contracts | 1 | 0 | 1 | 3
Pre- Modification Recorded Principal Balance | $ 44,000 | $ 0 | $ 44,000 | $ 66,000
Post- Modification Recorded Principal Balance | $ 44,000 | $ 0 | $ 44,000 | $ 66,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |  |
Number of Contracts | 0 | 1 | 1 | 4
Pre- Modification Recorded Principal Balance | $ 0 | $ 237,000 | $ 60,000 | $ 655,000
Post- Modification Recorded Principal Balance | $ 0 | $ 237,000 | $ 60,000 | $ 655,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Real Estate Multi Family and Residentia lRental Loan [Member] |  |  |  |
Number of Contracts | 0 | 0 | 1 | 2
Pre- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 7,000 | $ 202,000
Post- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 7,000 | $ 202,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] |  |  |  |
Number of Contracts | 1 | 1 | 3 | 11
Pre- Modification Recorded Principal Balance | $ 44,000 | $ 237,000 | $ 111,000 | $ 1,209,000
Post- Modification Recorded Principal Balance | $ 44,000 | $ 237,000 | $ 111,000 | $ 1,209,000
Retail Portfolio Segment [Member] | Originated Loan [Member] | Home Equity and Other [Member] |  |  |  |
Number of Contracts | 1 | 0 | 3 | 0
Pre- Modification Recorded Principal Balance | $ 56,000 | $ 0 | $ 240,000 | $ 0
Post- Modification Recorded Principal Balance | $ 56,000 | $ 0 | $ 240,000 | $ 0
Retail Portfolio Segment [Member] | Originated Loan [Member] | One to Four Family Mortgages [Member] |  |  |  |
Number of Contracts | 0 | 0 | 1 | 0
Pre- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 33,000 | $ 0
Post- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 40,000 | $ 0
Retail Portfolio Segment [Member] | Originated Loan [Member] |  |  |  |
Number of Contracts | 1 | 0 | 4 | 0
Pre- Modification Recorded Principal Balance | $ 56,000 | $ 0 | $ 273,000 | $ 0
Post- Modification Recorded Principal Balance | $ 56,000 | $ 0 | $ 280,000 | $ 0
Retail Portfolio Segment [Member] | Acquired Loan [Member] | Home Equity and Other [Member] |  |  |  |
Number of Contracts | 1 | 0 | 3 | 0
Pre- Modification Recorded Principal Balance | $ 3,000 | $ 0 | $ 54,000 | $ 0
Post- Modification Recorded Principal Balance | $ 3,000 | $ 0 | $ 54,000 | $ 0
Retail Portfolio Segment [Member] | Acquired Loan [Member] | One to Four Family Mortgages [Member] |  |  |  |
Number of Contracts | 0 | 0 | 1 |
Pre- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 19,000 |
Post- Modification Recorded Principal Balance | $ 0 | $ 0 | $ 19,000 |
Retail Portfolio Segment [Member] | Acquired Loan [Member] |  |  |  |
Number of Contracts | 1 | 0 | 4 | 0
Pre- Modification Recorded Principal Balance | $ 3,000 | $ 0 | $ 73,000 | $ 0
Post- Modification Recorded Principal Balance | $ 3,000 | $ 0 | $ 73,000 | $ 0
Originated Loan [Member] |  |  |  |
Number of Contracts | 1 | 0 | 6 | 9
Pre- Modification Recorded Principal Balance | $ 56,000 | $ 0 | $ 460,000 | $ 1,876,000
Post- Modification Recorded Principal Balance | $ 56,000 | $ 0 | $ 467,000 | $ 1,901,000
Acquired Loan [Member] |  |  |  |
Number of Contracts | 2 | 1 | 7 | 11
Pre- Modification Recorded Principal Balance | $ 47,000 | $ 237,000 | $ 184,000 | $ 1,209,000
Post- Modification Recorded Principal Balance | $ 47,000 | $ 237,000 | $ 184,000 | $ 1,209,000

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