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Note 3 - Loans and Allowance for Loan Losses - Loans Modified as Troubled Debt Restructurings (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2017 USD ($)
Originated Loan [Member] |  |  |  |
Number of Contracts | 2 | 11 | 7 | 15
Pre- Modification Recorded Principal Balance | $ 974,000 | $ 3,830,000 | $ 2,310,000 | $ 4,159,000
Post- Modification Recorded Principal Balance | $ 1,079,000 | $ 4,010,000 | $ 2,392,000 | $ 4,339,000
Acquired Loan [Member] |  |  |  |
Number of Contracts | 6 | 7 | 11 | 10
Pre- Modification Recorded Principal Balance | $ 137,000 | $ 1,073,000 | $ 241,000 | $ 1,136,000
Post- Modification Recorded Principal Balance | $ 138,000 | $ 1,073,000 | $ 242,000 | $ 1,137,000
Commercial Portfolio Segment [Member] | Originated Loan [Member] |  |  |  |
Number of Contracts | 2 | 9 | 6 | 9
Pre- Modification Recorded Principal Balance | $ 974,000 | $ 3,570,000 | $ 2,260,000 | $ 3,570,000
Post- Modification Recorded Principal Balance | $ 1,079,000 | $ 3,749,000 | $ 2,342,000 | $ 3,749,000
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Commercial and Industrial [Member] |  |  |  |
Number of Contracts | 2 | 6 | 4 | 6
Pre- Modification Recorded Principal Balance | $ 974,000 | $ 2,752,000 | $ 1,068,000 | $ 2,752,000
Post- Modification Recorded Principal Balance | $ 1,079,000 | $ 2,931,000 | $ 1,162,000 | $ 2,931,000
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 | 3 | 2 | 3
Pre- Modification Recorded Principal Balance | $ 0 | $ 818,000 | $ 1,192,000 | $ 818,000
Post- Modification Recorded Principal Balance | $ 0 | $ 818,000 | $ 1,180,000 | $ 818,000
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 Residential Rental 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] |  |  |  |
Number of Contracts | 0 | 3 | 0 | 3
Pre- Modification Recorded Principal Balance | $ 0 | $ 836,000 | $ 0 | $ 836,000
Post- Modification Recorded Principal Balance | $ 0 | $ 835,000 | $ 0 | $ 835,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Commercial and Industrial [Member] |  |  |  |
Number of Contracts | 0 | 1 | 0 | 1
Pre- Modification Recorded Principal Balance | $ 0 | $ 118,000 | $ 0 | $ 118,000
Post- Modification Recorded Principal Balance | $ 0 | $ 117,000 | $ 0 | $ 117,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |  |
Number of Contracts | 0 | 1 | 0 | 1
Pre- Modification Recorded Principal Balance | $ 0 | $ 38,000 | $ 0 | $ 38,000
Post- Modification Recorded Principal Balance | $ 0 | $ 38,000 | $ 0 | $ 38,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Real Estate 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] | Acquired Loan [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |  |
Number of Contracts | 0 | 1 | 0 | 1
Pre- Modification Recorded Principal Balance | $ 0 | $ 680,000 | $ 0 | $ 680,000
Post- Modification Recorded Principal Balance | $ 0 | $ 680,000 | $ 0 | $ 680,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Real Estate Multi Family and Residential Rental 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
Retail Portfolio Segment [Member] | Originated Loan [Member] |  |  |  |
Number of Contracts | 0 | 2 | 1 | 6
Pre- Modification Recorded Principal Balance | $ 0 | $ 260,000 | $ 50,000 | $ 589,000
Post- Modification Recorded Principal Balance | $ 0 | $ 261,000 | $ 50,000 | $ 590,000
Retail Portfolio Segment [Member] | Originated Loan [Member] | Home Equity and Other [Member] |  |  |  |
Number of Contracts | 0 | 2 | 1 | 6
Pre- Modification Recorded Principal Balance | $ 0 | $ 260,000 | $ 50,000 | $ 589,000
Post- Modification Recorded Principal Balance | $ 0 | $ 261,000 | $ 50,000 | $ 590,000
Retail Portfolio Segment [Member] | Originated Loan [Member] | One to Four Family Mortgages [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
Retail Portfolio Segment [Member] | Acquired Loan [Member] |  |  |  |
Number of Contracts | 6 | 4 | 11 | 7
Pre- Modification Recorded Principal Balance | $ 137,000 | $ 237,000 | $ 241,000 | $ 300,000
Post- Modification Recorded Principal Balance | $ 138,000 | $ 238,000 | $ 242,000 | $ 302,000
Retail Portfolio Segment [Member] | Acquired Loan [Member] | Home Equity and Other [Member] |  |  |  |
Number of Contracts | 5 | 3 | 10 | 5
Pre- Modification Recorded Principal Balance | $ 113,000 | $ 160,000 | $ 217,000 | $ 166,000
Post- Modification Recorded Principal Balance | $ 114,000 | $ 161,000 | $ 218,000 | $ 168,000
Retail Portfolio Segment [Member] | Acquired Loan [Member] | One to Four Family Mortgages [Member] |  |  |  |
Number of Contracts | 1 | 1 | 1 | 2
Pre- Modification Recorded Principal Balance | $ 24,000 | $ 77,000 | $ 24,000 | $ 134,000
Post- Modification Recorded Principal Balance | $ 24,000 | $ 77,000 | $ 24,000 | $ 134,000

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