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Securities (Tables) | 12 Months Ended
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Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract] |
Summary of Amortized Costs and Fair Values of Securities Available for Sale | Amortized costs and fair values of securities at December 31, 2015 and 2014 were as follows (in thousands):
|  | 2015 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized (Losses) |  |  | Fair Value |
Securities available for sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. agency and mortgage-backed securities |  | $ | 89,919 |  |  | $ | 261 |  |  | $ | (843 | ) |  | $ | 89,337 |
Obligations of states and political subdivisions |  |  | 15,931 |  |  |  | 333 |  |  |  | (50 | ) |  |  | 16,214 |
Corporate equity securities |  |  | 1 |  |  |  | 7 |  |  |  | — |  |  |  | 8 |
Total securities available for sale |  | $ | 105,851 |  |  | $ | 601 |  |  | $ | (893 | ) |  | $ | 105,559 |
Securities held to maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. agency and mortgage-backed securities |  | $ | 49,662 |  |  | $ | 36 |  |  | $ | (326 | ) |  | $ | 49,372 |
Obligations of states and political subdivisions |  |  | 15,357 |  |  |  | 228 |  |  |  | (19 | ) |  |  | 15,566 |
Corporate debt securities |  |  | 1,500 |  |  |  | — |  |  |  | — |  |  |  | 1,500 |
Total securities held to maturity |  | $ | 66,519 |  |  | $ | 264 |  |  | $ | (345 | ) |  | $ | 66,438 |
Total securities |  | $ | 172,370 |  |  | $ | 865 |  |  | $ | (1,238 | ) |  | $ | 171,997 |
|  | 2014 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized (Losses) |  |  | Fair Value |
Securities available for sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. agency and mortgage-backed securities |  | $ | 67,462 |  |  | $ | 374 |  |  | $ | (807 | ) |  | $ | 67,029 |
Obligations of states and political subdivisions |  |  | 16,031 |  |  |  | 325 |  |  |  | (99 | ) |  |  | 16,257 |
Corporate equity securities |  |  | 1 |  |  |  | 5 |  |  |  | — |  |  |  | 6 |
Total securities available for sale |  | $ | 83,494 |  |  | $ | 704 |  |  | $ | (906 | ) |  | $ | 83,292 |
Summary of Investments in an Unrealized Loss Position that were Temporarily Impaired | At December 31, 2015 and 2014, investments in an unrealized loss position that were temporarily impaired were as follows (in thousands):
|  | 2015 |
|  | Less than 12 months |  |  | 12 months or more |  |  | Total |
|  |  |  |  | Unrealized |  |  |  |  |  | Unrealized |  |  |  |  |  | Unrealized |
|  | Fair Value |  |  | (Loss) |  |  | Fair Value |  |  | (Loss) |  |  | Fair Value |  |  | (Loss) |
Securities available for sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. agency and mortgage-backed securities |  | $ | 50,185 |  |  | $ | (464 | ) |  | $ | 13,409 |  |  | $ | (379 | ) |  | $ | 63,594 |  |  | $ | (843 | )
Obligations of states and political subdivisions |  |  | 2,395 |  |  |  | (15 | ) |  |  | 1,053 |  |  |  | (35 | ) |  |  | 3,448 |  |  |  | (50 | )
Total securities available for sale |  | $ | 52,580 |  |  | $ | (479 | ) |  | $ | 14,462 |  |  | $ | (414 | ) |  | $ | 67,042 |  |  | $ | (893 | )
Securities held to maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. agency and mortgage-backed securities |  | $ | 32,791 |  |  | $ | (326 | ) |  | $ | — |  |  | $ | — |  |  | $ | 32,791 |  |  | $ | (326 | )
Obligations of states and political subdivisions |  |  | 3,052 |  |  |  | (19 | ) |  |  | — |  |  |  | — |  |  |  | 3,052 |  |  |  | (19 | )
Total securities held to maturity |  | $ | 35,843 |  |  | $ | (345 | ) |  | $ | — |  |  | $ | — |  |  | $ | 35,843 |  |  | $ | (345 | )
Total securities |  | $ | 88,423 |  |  | $ | (824 | ) |  | $ | 14,462 |  |  | $ | (414 | ) |  | $ | 102,885 |  |  | $ | (1,238 | )
|  | 2014 |
|  | Less than 12 months |  |  | 12 months or more |  |  | Total |
|  |  |  |  | Unrealized |  |  |  |  |  | Unrealized |  |  |  |  |  | Unrealized |
|  | Fair Value |  |  | (Loss) |  |  | Fair Value |  |  | (Loss) |  |  | Fair Value |  |  | (Loss) |
Securities available for sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. agency and mortgage-backed securities |  | $ | 8,677 |  |  | $ | (60 | ) |  | $ | 32,527 |  |  | $ | (747 | ) |  | $ | 41,204 |  |  | $ | (807 | )
Obligations of states and political subdivisions |  |  | 715 |  |  |  | (1 | ) |  |  | 2,841 |  |  |  | (98 | ) |  |  | 3,556 |  |  |  | (99 | )
Total securities available for sale |  | $ | 9,392 |  |  | $ | (61 | ) |  | $ | 35,368 |  |  | $ | (845 | ) |  | $ | 44,760 |  |  | $ | (906 | )
Amortized Cost and Fair Value of Securities |
|  | Available for Sale |  |  | Held to Maturity |
|  | Amortized |  |  | Fair |  |  | Amortized |  |  | Fair |
|  | Cost |  |  | Value |  |  | Cost |  |  | Value |
Due within one year |  | $ | 382 |  |  | $ | 383 |  |  | $ | — |  |  | $ | — |
Due after one year through five years |  |  | 11,733 |  |  |  | 11,693 |  |  |  | 632 |  |  |  | 635 |
Due after five years through ten years |  |  | 16,013 |  |  |  | 16,113 |  |  |  | 19,510 |  |  |  | 19,564 |
Due after ten years |  |  | 77,722 |  |  |  | 77,362 |  |  |  | 46,377 |  |  |  | 46,239 |
Corporate equity securities |  |  | 1 |  |  |  | 8 |  |  |  | — |  |  |  | — |
|  | $ | 105,851 |  |  | $ | 105,559 |  |  | $ | 66,519 |  |  | $ | 66,438 |
Composition of Restricted Securities | The composition of restricted securities at December 31, 2015 and 2014 was as follows (in thousands):
|  | 2015 |  |  | 2014 |
Federal Home Loan Bank stock |  | $ | 466 |  |  | $ | 470 |
Federal Reserve Bank stock |  |  | 875 |  |  |  | 846 |
Community Bankers’ Bank stock |  |  | 50 |  |  |  | 50 |
|  | $ | 1,391 |  |  | $ | 1,366 |

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