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Note 4 - Credit Quality - Loans Modified as Troubled Debt Restructurings by Loan Class Segregated by Accrual Status (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | ---
TDRs |  | $ 10,179 | $ 14,236
Nonaccrual | [1] | 1,594 | 1,284
Accrual |  | 8,585 | 12,952
Allowance for loan losses related to TDRs |  | 770 | 670
Commercial Portfolio Segment [Member] | Single Family Non-owner Occupied [Member] |  |  |
TDRs |  | 915 | 930
Nonaccrual | [1] | 35 | 38
Accrual |  | 880 | 892
Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] |  |  |
TDRs |  | 295 | 4,160
Nonaccrual | [1] |  |
Accrual |  | 295 | 4,160
Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] |  |  |
TDRs |  | 152 | 158
Nonaccrual | [1] |  |
Accrual |  | 152 | 158
Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] |  |  |
TDRs |  | 8,582 | 8,408
Nonaccrual | [1] | 1,559 | 905
Accrual |  | 7,023 | 7,503
Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] |  |  |
TDRs |  | 235 | 580
Nonaccrual | [1] |  | 341
Accrual |  | $ 235 | $ 239
[1] | Nonaccrual TDRs are included in total nonaccrual loans disclosed in the nonaccrual table above.

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