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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, 2019 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2018 USD ($)
Originated Loan [Member] |  |  |  |
Number of Contracts | 3 | 6 | 12 | 12
Pre- Modification Recorded Principal Balance | $ 129,000 | $ 5,402,000 | $ 16,148,000 | $ 7,497,000
Post- Modification Recorded Principal Balance | $ 129,000 | $ 5,248,000 | $ 16,445,000 | $ 7,437,000
Acquired Loan [Member] |  |  |  |
Number of Contracts | 6 | 3 | 16 | 14
Pre- Modification Recorded Principal Balance | $ 199,000 | $ 195,000 | $ 492,000 | $ 437,000
Post- Modification Recorded Principal Balance | $ 198,000 | $ 191,000 | $ 493,000 | $ 433,000
Commercial Portfolio Segment [Member] | Originated Loan [Member] |  |  |  |
Number of Contracts | 2 | 6 | 9 | 11
Pre- Modification Recorded Principal Balance | $ 115,000 | $ 5,402,000 | $ 16,111,000 | $ 7,447,000
Post- Modification Recorded Principal Balance | $ 115,000 | $ 5,248,000 | $ 16,408,000 | $ 7,387,000
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Commercial and Industrial [Member] |  |  |  |
Number of Contracts | 1 | 5 | 7 | 9
Pre- Modification Recorded Principal Balance | $ 28,000 | $ 3,118,000 | $ 14,457,000 | $ 4,186,000
Post- Modification Recorded Principal Balance | $ 28,000 | $ 2,964,000 | $ 14,754,000 | $ 4,126,000
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |  |
Number of Contracts | 1 | 0 | 1 | 0
Pre- Modification Recorded Principal Balance | $ 87,000 | $ 0 | $ 87,000 | $ 0
Post- Modification Recorded Principal Balance | $ 87,000 | $ 0 | $ 87,000 | $ 0
Commercial Portfolio Segment [Member] | Originated Loan [Member] | Real Estate Owner Occupied Loan [Member] |  |  |  |
Number of Contracts | 0 | 1 | 1 | 2
Pre- Modification Recorded Principal Balance | $ 0 | $ 2,284,000 | $ 1,567,000 | $ 3,261,000
Post- Modification Recorded Principal Balance | $ 0 | $ 2,284,000 | $ 1,567,000 | $ 3,261,000
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 | 1 | 2 | 1 | 2
Pre- Modification Recorded Principal Balance | $ 102,000 | $ 183,000 | $ 102,000 | $ 183,000
Post- Modification Recorded Principal Balance | $ 102,000 | $ 179,000 | $ 102,000 | $ 179,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] | Commercial and Industrial [Member] |  |  |  |
Number of Contracts | 0 | 1 | 0 | 1
Pre- Modification Recorded Principal Balance | $ 0 | $ 33,000 | $ 0 | $ 33,000
Post- Modification Recorded Principal Balance | $ 0 | $ 29,000 | $ 0 | $ 29,000
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 | 1 | 1 | 1
Pre- Modification Recorded Principal Balance | $ 102,000 | $ 150,000 | $ 102,000 | $ 150,000
Post- Modification Recorded Principal Balance | $ 102,000 | $ 150,000 | $ 102,000 | $ 150,000
Commercial Portfolio Segment [Member] | Acquired 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] | 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 | 1 | 0 | 3 | 1
Pre- Modification Recorded Principal Balance | $ 14,000 | $ 0 | $ 37,000 | $ 50,000
Post- Modification Recorded Principal Balance | $ 14,000 | $ 0 | $ 37,000 | $ 50,000
Retail Portfolio Segment [Member] | Originated Loan [Member] | Home Equity and Other [Member] |  |  |  |
Number of Contracts | 1 | 0 | 3 | 1
Pre- Modification Recorded Principal Balance | $ 14,000 | $ 0 | $ 37,000 | $ 50,000
Post- Modification Recorded Principal Balance | $ 14,000 | $ 0 | $ 37,000 | $ 50,000
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 | 5 | 1 | 15 | 12
Pre- Modification Recorded Principal Balance | $ 97,000 | $ 12,000 | $ 390,000 | $ 254,000
Post- Modification Recorded Principal Balance | $ 96,000 | $ 12,000 | $ 391,000 | $ 254,000
Retail Portfolio Segment [Member] | Acquired Loan [Member] | Home Equity and Other [Member] |  |  |  |
Number of Contracts | 4 | 0 | 10 | 10
Pre- Modification Recorded Principal Balance | $ 48,000 | $ 0 | $ 188,000 | $ 217,000
Post- Modification Recorded Principal Balance | $ 47,000 | $ 0 | $ 188,000 | $ 218,000
Retail Portfolio Segment [Member] | Acquired Loan [Member] | One to Four Family Mortgages [Member] |  |  |  |
Number of Contracts | 1 | 1 | 5 | 2
Pre- Modification Recorded Principal Balance | $ 49,000 | $ 12,000 | $ 202,000 | $ 37,000
Post- Modification Recorded Principal Balance | $ 49,000 | $ 12,000 | $ 203,000 | $ 36,000

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