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Note 3 - Loans and Allowance for Loan Losses - Loans Modified as Troubled Debt Restructurings (Details) | 3 Months Ended
--- | ---
Mar. 31, 2018 USD ($) | Mar. 31, 2017 USD ($)
Originated Loan [Member] |  |
Number of Contracts | 8 | 4
Pre- Modification Recorded Principal Balance | $ 4,022,000 | $ 328,000
Post- Modification Recorded Principal Balance | $ 4,000,000 | $ 329,000
Acquired Loan [Member] |  |
Number of Contracts | 9 | 4
Pre- Modification Recorded Principal Balance | $ 1,715,000 | $ 94,000
Post- Modification Recorded Principal Balance | $ 1,716,000 | $ 95,000
Commercial Portfolio Segment [Member] | Originated Loan [Member] |  |
Number of Contracts | 7 | 0
Pre- Modification Recorded Principal Balance | $ 3,972,000 | $ 0
Post- Modification Recorded Principal Balance | $ 3,950,000 | $ 0
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Commercial and Industrial [Member] |  |
Number of Contracts | 3 | 0
Pre- Modification Recorded Principal Balance | $ 107,000 | $ 0
Post- Modification Recorded Principal Balance | $ 96,000 | $ 0
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |
Number of Contracts | 0 | 0
Pre- Modification Recorded Principal Balance | $ 0 | $ 0
Post- Modification Recorded Principal Balance | $ 0 | $ 0
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Real Estate Owner Occupied Loan [Member] |  |
Number of Contracts | 4 | 0
Pre- Modification Recorded Principal Balance | $ 3,865,000 | $ 0
Post- Modification Recorded Principal Balance | $ 3,854,000 | $ 0
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Real Estate Non Owner Occupied Loan [Member] |  |
Number of Contracts | 0 | 0
Pre- Modification Recorded Principal Balance | $ 0 | $ 0
Post- Modification Recorded Principal Balance | $ 0 | $ 0
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |
Number of Contracts | 0 | 0
Pre- Modification Recorded Principal Balance | $ 0 | $ 0
Post- Modification Recorded Principal Balance | $ 0 | $ 0
Commercial Portfolio Segment [Member] | Acquired Loan [Member] |  |
Number of Contracts | 3 | 1
Pre- Modification Recorded Principal Balance | $ 1,597,000 | $ 31,000
Post- Modification Recorded Principal Balance | $ 1,597,000 | $ 31,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Commercial and Industrial [Member] |  |
Number of Contracts | 0 | 1
Pre- Modification Recorded Principal Balance | $ 0 | $ 31,000
Post- Modification Recorded Principal Balance | $ 0 | $ 31,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |
Number of Contracts | 0 | 0
Pre- Modification Recorded Principal Balance | $ 0 | $ 0
Post- Modification Recorded Principal Balance | $ 0 | $ 0
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Real Estate Owner Occupied Loan [Member] |  |
Number of Contracts | 3 | 0
Pre- Modification Recorded Principal Balance | $ 1,597,000 | $ 0
Post- Modification Recorded Principal Balance | $ 1,597,000 | $ 0
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Real Estate Non Owner Occupied Loan [Member] |  |
Number of Contracts | 0 | 0
Pre- Modification Recorded Principal Balance | $ 0 | $ 0
Post- Modification Recorded Principal Balance | $ 0 | $ 0
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |
Number of Contracts | 0 | 0
Pre- Modification Recorded Principal Balance | $ 0 | $ 0
Post- Modification Recorded Principal Balance | $ 0 | $ 0
Retail Portfolio Segment [Member] | Originated Loan [Member] |  |
Number of Contracts | 1 | 4
Pre- Modification Recorded Principal Balance | $ 50,000 | $ 328,000
Post- Modification Recorded Principal Balance | $ 50,000 | $ 329,000
Retail Portfolio Segment [Member] | Originated Loan [Member] | Home Equity and Other [Member] |  |
Number of Contracts | 1 | 4
Pre- Modification Recorded Principal Balance | $ 50,000 | $ 328,000
Post- Modification Recorded Principal Balance | $ 50,000 | $ 329,000
Retail Portfolio Segment [Member] | Originated Loan [Member] | One to Four Family Mortgages [Member] |  |
Number of Contracts | 0 | 0
Pre- Modification Recorded Principal Balance | $ 0 | $ 0
Post- Modification Recorded Principal Balance | $ 0 | $ 0
Retail Portfolio Segment [Member] | Acquired Loan [Member] |  |
Number of Contracts | 6 | 3
Pre- Modification Recorded Principal Balance | $ 118,000 | $ 63,000
Post- Modification Recorded Principal Balance | $ 119,000 | $ 64,000
Retail Portfolio Segment [Member] | Acquired Loan [Member] | Home Equity and Other [Member] |  |
Number of Contracts | 6 | 2
Pre- Modification Recorded Principal Balance | $ 118,000 | $ 6,000
Post- Modification Recorded Principal Balance | $ 119,000 | $ 7,000
Retail Portfolio Segment [Member] | Acquired Loan [Member] | One to Four Family Mortgages [Member] |  |
Number of Contracts | 0 | 1
Pre- Modification Recorded Principal Balance | $ 0 | $ 57,000
Post- Modification Recorded Principal Balance | $ 0 | $ 57,000

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