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Securities (Tables) | 12 Months Ended
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Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract] |
Schedule of fair value of securities available for sale | The fair value of securities available for sale and the related gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) at December 31 were as follows:
|  | 2016 |
|  |  |  |  | Gross |  |  | Gross |  |  |  |
(Dollars in thousands) |  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
U.S. Government and federal agency |  | $ | 59,864 |  |  | $ | 34 |  |  | $ | (846 | ) |  | $ | 59,052 |
U.S. Treasury notes and bonds |  |  | 4,111 |  |  |  | — |  |  |  | (39 | ) |  |  | 4,072 |
State and municipal |  |  | 89,169 |  |  |  | 748 |  |  |  | (944 | ) |  |  | 88,973 |
Mortgage-backed |  |  | 7,925 |  |  |  | 19 |  |  |  | (155 | ) |  |  | 7,789 |
Corporate |  |  | 7,069 |  |  |  | 12 |  |  |  | (40 | ) |  |  | 7,041 |
Foreign debt |  |  | 4,514 |  |  |  | — |  |  |  | (114 | ) |  |  | 4,400 |
Equity securities |  |  | 2,617 |  |  |  | 266 |  |  |  | — |  |  |  | 2,883 |
Asset-backed securities |  |  | 182 |  |  |  | — |  |  |  | (4 | ) |  |  | 178 |
Total |  | $ | 175,451 |  |  | $ | 1,079 |  |  | $ | (2,142 | ) |  | $ | 174,388 |
|  | 2015 |
|  |  |  |  | Gross |  |  | Gross |  |  |  |
(Dollars in thousands) |  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
U.S. Government and federal agency |  | $ | 57,406 |  |  | $ | 30 |  |  | $ | (229 | ) |  | $ | 57,207 |
U.S. Treasury notes and bonds |  |  | 6,133 |  |  |  | — |  |  |  | (33 | ) |  |  | 6,100 |
State and municipal |  |  | 76,005 |  |  |  | 1,858 |  |  |  | (109 | ) |  |  | 77,754 |
Mortgage-backed |  |  | 6,989 |  |  |  | 26 |  |  |  | (45 | ) |  |  | 6,970 |
Corporate |  |  | 8,418 |  |  |  | 8 |  |  |  | (39 | ) |  |  | 8,387 |
Foreign debt |  |  | 1,000 |  |  |  | — |  |  |  | (5 | ) |  |  | 995 |
Equity securities |  |  | 2,279 |  |  |  | 174 |  |  |  | — |  |  |  | 2,453 |
Asset-backed securities |  |  | 274 |  |  |  | — |  |  |  | (4 | ) |  |  | 270 |
Total |  | $ | 158,504 |  |  | $ | 2,096 |  |  | $ | (464 | ) |  | $ | 160,136 |
Schedule of sales of securities available for sale | Information regarding sales of securities available for sale for the year ended December 31 follows: (Dollars in thousands)
|  | 2016 |  |  | 2015 |  |  | 2014 |
Proceeds from sales of securities |  | $ | 15,317 |  |  | $ | 25,876 |  |  | $ | 24,766 |
Gross realized gains |  |  | 312 |  |  |  | 261 |  |  |  | 341 |
Gross realized losses |  |  | 0 |  |  |  | 0 |  |  |  | 30 |
Schedule of contractual maturities of available for sale securities | Contractual maturities of securities available for sale at December 31, 2016 were as follows:
(Dollars in thousands) |  | Amortized |  |  | Fair |
|  | Cost |  |  | Value |
Due within one year |  | $ | 34,174 |  |  | $ | 33,879 |
Due after one year through five years |  |  | 89,413 |  |  |  | 89,204 |
Due after five years through ten years |  |  | 37,153 |  |  |  | 36,514 |
Due after ten years |  |  | 4,168 |  |  |  | 4,119 |
Total debt securities |  |  | 164,908 |  |  |  | 163,716 |
Mortgage-backed securities |  |  | 7,925 |  |  |  | 7,789 |
Equity securities |  |  | 2,883 |  |  |  | 2,883 |
Total |  | $ | 175,716 |  |  | $ | 174,388
Schedule of securities pledged as collateral | Various securities were pledged as collateral for securities sold under agreements to repurchase, advances from the Federal Home Loan Bank, and participation in a program that provided Community Reinvestment Act credits. The carrying amount of securities pledged as collateral at December 31 was as follows:
(Dollars in thousands) |  | 2016 |  |  | 2015 |
Securities pledged for securities sold under agreements to repurchase |  | $ | 13,186 |  |  | $ | 7,011 |
Securities pledged for advances from the Federal Home Loan Bank |  |  | — |  |  |  | 24,199 |
Security pledged for Community Reinvestment Act credits |  |  | 250 |  |  |  | 276 |
Total |  | $ | 13,436 |  |  | $ | 31,486 |
Schedule of securities in a continuous unrealized loss position | Securities with unrealized losses at year-end 2016 and 2015, aggregated by investment category and length of time the individual securities have been in an unrealized loss position, were as follows:
|  | 2016 |
|  | Less than 12 months |  |  | More than 12 months |  |  | Total |
(Dollars in thousands) |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
U.S. Government and federal agency |  | $ | 46,283 |  |  | $ | (846 | ) |  | $ | — |  |  | $ | — |  |  | $ | 46,283 |  |  | $ | (846 | )
U.S. Treasury notes and bonds |  |  | 4,072 |  |  |  | (39 | ) |  |  | — |  |  |  | — |  |  |  | 4,072 |  |  |  | (39 | )
State and municipal |  |  | 47,832 |  |  |  | (944 | ) |  |  | — |  |  |  | — |  |  |  | 47,832 |  |  |  | (944 | )
Mortgage-backed |  |  | 5,980 |  |  |  | (150 | ) |  |  | 251 |  |  |  | (5 | ) |  |  | 6,231 |  |  |  | (155 | )
Corporate |  |  | 2,838 |  |  |  | (40 | ) |  |  | — |  |  |  | — |  |  |  | 2,838 |  |  |  | (40 | )
Foreign debt |  |  | 4,400 |  |  |  | (114 | ) |  |  | — |  |  |  | — |  |  |  | 4,400 |  |  |  | (114 | )
Asset-backed securities |  |  | — |  |  |  | — |  |  |  | 178 |  |  |  | (4 | ) |  |  | 178 |  |  |  | (4 | )
Total temporarily impaired |  | $ | 111,405 |  |  | $ | (2,133 | ) |  | $ | 429 |  |  | $ | (9 | ) |  | $ | 111,834 |  |  | $ | (2,142 | )
|  | 2015 |
|  | Less than 12 months |  |  | More than 12 months |  |  | Total |
(Dollars in thousands) |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
U.S. Government and federal agency |  | $ | 38,567 |  |  | $ | (216 | ) |  | $ | 986 |  |  | $ | (13 | ) |  | $ | 39,553 |  |  | $ | (229 | )
U.S. Treasury notes and bonds |  |  | 6,101 |  |  |  | (33 | ) |  |  | — |  |  |  | — |  |  |  | 6,101 |  |  |  | (33 | )
State and municipal |  |  | 10,382 |  |  |  | (69 | ) |  |  | 2,906 |  |  |  | (40 | ) |  |  | 13,288 |  |  |  | (109 | )
Mortgage-backed |  |  | 4,459 |  |  |  | (41 | ) |  |  | 382 |  |  |  | (4 | ) |  |  | 4,841 |  |  |  | (45 | )
Corporate |  |  | 4,284 |  |  |  | (33 | ) |  |  | 896 |  |  |  | (6 | ) |  |  | 5,180 |  |  |  | (39 | )
Foreign debt |  |  | 995 |  |  |  | (5 | ) |  |  | — |  |  |  | — |  |  |  | 995 |  |  |  | (5 | )
Asset-backed securities |  |  | — |  |  |  | — |  |  |  | 270 |  |  |  | (4 | ) |  |  | 270 |  |  |  | (4 | )
Total temporarily impaired |  | $ | 64,788 |  |  | $ | (397 | ) |  | $ | 5,440 |  |  | $ | (67 | ) |  | $ | 70,228 |  |  | $ | (464 | )

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