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Note 4 - Securities (Tables) | 9 Months Ended
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Sep. 30, 2019
Notes Tables |
Available-for-sale Securities [Table Text Block] |
|  | (Dollars in thousands) |
|  |  |  |  |  | Gross |  |  | Gross |  |  | Estimated |
|  | Cost |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Basis |  |  | Gains |  |  | Losses |  |  | Value |
September 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market fund |  | $ | 5,771 |  |  | $ | - |  |  | $ | - |  |  | $ | 5,771 |
U.S. government sponsored entities |  |  | 14,420 |  |  |  | 96 |  |  |  | (3 | ) |  |  | 14,513 |
Collateralized mortgage obligations and residential mortgage-backed securities |  |  | 138,832 |  |  |  | 1,894 |  |  |  | (105 | ) |  |  | 140,621 |
Municipal securities |  |  | 92,999 |  |  |  | 5,119 |  |  |  | (39 | ) |  |  | 98,079 |
Collateralized debt obligations |  |  | 3,448 |  |  |  | - |  |  |  | (1,378 | ) |  |  | 2,070 |
Total securities available-for-sale |  | $ | 255,470 |  |  | $ | 7,109 |  |  | $ | (1,525 | ) |  | $ | 261,054 |
|  | (Dollars in thousands) |
|  |  |  |  |  | Gross |  |  | Gross |  |  | Estimated |
|  | Cost |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Basis |  |  | Gains |  |  | Losses |  |  | Value |
December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market fund |  | $ | 2,480 |  |  | $ | - |  |  | $ | - |  |  | $ | 2,480 |
U.S. government sponsored entities |  |  | 7,997 |  |  |  | 28 |  |  |  | (131 | ) |  |  | 7,894 |
Collateralized mortgage obligations and residential mortgage-backed securities |  |  | 137,834 |  |  |  | 135 |  |  |  | (2,688 | ) |  |  | 135,281 |
Municipal securities |  |  | 93,516 |  |  |  | 1,072 |  |  |  | (524 | ) |  |  | 94,064 |
Collateralized debt obligations |  |  | 3,481 |  |  |  | - |  |  |  | (1,432 | ) |  |  | 2,049 |
Total securities available-for-sale |  | $ | 245,308 |  |  | $ | 1,235 |  |  | $ | (4,775 | ) |  | $ | 241,768 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | (Dollars in thousands) |
|  | Available-for-sale |
|  | Estimated |  |  |  |  |
|  | Fair |  |  | Tax-Equivalent |
September 30, 2019 |  | Value |  |  | Yield (%) |
Due in one year or less |  | $ | 8,840 |  |  |  | 2.71 |
Due from one to five years |  |  | 3,397 |  |  |  | 4.95 |
Due from five to ten years |  |  | 20,270 |  |  |  | 3.71 |
Due over ten years |  |  | 87,926 |  |  |  | 4.02 |
Collateralized mortgage obligations and residential mortgage-backed securities |  |  | 140,621 |  |  |  | 2.70 |
Total |  | $ | 261,054 |  |  |  | 3.25 |
Schedule of Realized Gain (Loss) [Table Text Block] |
|  | (Dollars in thousands) |
|  | September 30, |  |  | September 30, |
|  | 2019 |  |  | 2018 |
Proceeds |  | $ | 35,859 |  |  | $ | 29,049 |
Gross gains |  |  | 838 |  |  |  | 1,159 |
Gross losses |  |  | (84 | ) |  |  | (4 | )
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | (Dollars in thousands) |
|  | Unrealized gain/(loss) |
Ending balance, December 31, 2018 |  | $ | (2,796 | )
Current period change |  |  | 7,214 |
Ending balance, September 30, 2019 |  | $ | 4,418 |
Unrealized Gain (Loss) on Investments [Table Text Block] |
|  | (Dollars in thousands) |
|  | Less than 12 months |  |  | 12 months or longer |  |  | Total |
|  | Estimated |  |  |  |  |  |  | Estimated |  |  |  |  |  |  | Estimated |  |  |  |  |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
September 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government sponsored entities |  | $ | 1,427 |  |  | $ | (3 | ) |  | $ | - |  |  | $ | - |  |  | $ | 1,427 |  |  | $ | (3 | )
Collateralized mortgage obligations and residential mortgage-backed securities |  |  | 5,727 |  |  |  | (34 | ) |  |  | 17,351 |  |  |  | (71 | ) |  |  | 23,078 |  |  |  | (105 | )
Municipal securities |  |  | 2,579 |  |  |  | (39 | ) |  |  | - |  |  |  | - |  |  |  | 2,579 |  |  |  | (39 | )
Collateralized debt obligations |  |  | - |  |  |  | - |  |  |  | 2,070 |  |  |  | (1,378 | ) |  |  | 2,070 |  |  |  | (1,378 | )
Total temporarily impaired |  | $ | 9,733 |  |  | $ | (76 | ) |  | $ | 19,421 |  |  | $ | (1,449 | ) |  | $ | 29,154 |  |  | $ | (1,525 | )
Number of securities |  |  |  |  |  |  | 8 |  |  |  |  |  |  |  | 19 |  |  |  |  |  |  |  | 27 |
|  | (Dollars in thousands) |
|  | Less than 12 months |  |  | 12 months or longer |  |  | Total |
|  | Estimated |  |  |  |  |  |  | Estimated |  |  |  |  |  |  | Estimated |  |  |  |  |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government sponsored entities |  | $ | - |  |  | $ | - |  |  | $ | 3,866 |  |  | $ | (131 | ) |  | $ | 3,866 |  |  | $ | (131 | )
Collateralized mortgage obligations and residential mortgage-backed securities |  |  | 28,388 |  |  |  | (304 | ) |  |  | 89,234 |  |  |  | (2,384 | ) |  |  | 117,622 |  |  |  | (2,688 | )
Municipal securities |  |  | 22,678 |  |  |  | (367 | ) |  |  | 3,495 |  |  |  | (157 | ) |  |  | 26,173 |  |  |  | (524 | )
Collateralized debt obligations |  |  | - |  |  |  | - |  |  |  | 2,049 |  |  |  | (1,432 | ) |  |  | 2,049 |  |  |  | (1,432 | )
Total temporarily impaired |  | $ | 51,066 |  |  | $ | (671 | ) |  | $ | 98,644 |  |  | $ | (4,104 | ) |  | $ | 149,710 |  |  | $ | (4,775 | )
Number of securities |  |  |  |  |  |  | 52 |  |  |  |  |  |  |  | 75 |  |  |  |  |  |  |  | 127 |

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