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Securities | 12 Months Ended
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Dec. 31, 2017
Cash and Cash Equivalents [Abstract] |
Securities | 4. Securities Securities available-for-sale at December 31, 2017 and 2016 are as follows:
|  | December 31, 2017 |  |  | December 31, 2016 |
|  | Amortized Cost |  |  | Unrealized |  |  | Fair Value |  |  | Amortized Cost |  |  | Unrealized |  |  | Fair Value |
|  | Gains |  |  | Losses |  |  |  |  | Gains |  |  | Losses |  |
U.S. Gov’t sponsored entities |  |  | $108,578 |  |  | $ | 478 |  |  | $ | (908 | ) |  |  | $108,148 |  |  |  | $139,823 |  |  |  | $1,107 |  |  | $ | (579 | ) |  |  | $140,351 |
State & political subdivisions |  |  | 134,428 |  |  |  | 3,609 |  |  |  | (314) |  |  |  | 137,723 |  |  |  | 153,492 |  |  |  | 4,194 |  |  |  | (649 | ) |  |  | 157,037 |
Residential & multi-family mortgage |  |  | 111,214 |  |  |  | 304 |  |  |  | (1,882) |  |  |  | 109,636 |  |  |  | 136,807 |  |  |  | 551 |  |  |  | (2,382 | ) |  |  | 134,976 |
Corporate notes & bonds |  |  | 17,610 |  |  |  | 52 |  |  |  | (462) |  |  |  | 17,200 |  |  |  | 18,299 |  |  |  | 77 |  |  |  | (962 | ) |  |  | 17,414 |
Pooled trust preferred |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 800 |  |  |  | 1,249 |  |  |  | 0 |  |  |  | 2,049 |
Pooled SBA |  |  | 36,260 |  |  |  | 355 |  |  |  | (575) |  |  |  | 36,040 |  |  |  | 43,450 |  |  |  | 505 |  |  |  | (918 | ) |  |  | 43,037 |
Other equity securities |  |  | 1,020 |  |  |  | 0 |  |  |  | (58) |  |  |  | 962 |  |  |  | 1,020 |  |  |  | 0 |  |  |  | (49 | ) |  |  | 971 |
Total |  |  | $409,110 |  |  | $ | 4,798 |  |  | $ | (4,199 | ) |  |  | $409,709 |  |  |  | $493,691 |  |  |  | $7,683 |  |  |  | $(5,539) |  |  |  | $495,835 |
At December 31, 2017 and 2016, there were no holdings of securities by any one issuer, other than U.S. Government sponsored entities, in an amount greater than 10% of shareholders’ equity. The Corporation’s residential and multi-family mortgage securities are issued by government sponsored entities, and the Corporation holds one commercial mortgage security that is private label. Trading securities at December 31, 2017 and 2016 are as follows:
|  | 2017 |  |  | 2016 |
Corporate equity securities |  | $ | 5,125 |  |  | $ | 3,312 |
Mutual Funds |  |  | 1,499 |  |  |  | 1,037 |
Certificates of deposit |  |  | 220 |  |  |  | 202 |
Corporate notes and bonds |  |  | 254 |  |  |  | 254 |
U.S. Government sponsored entities |  |  | 52 |  |  |  | 53 |
Total |  | $ | 7,150 |  |  | $ | 4,858 |
Securities with unrealized losses at December 31, 2017 and 2016, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are as follows:
December 31, 2017 |  | Less than 12 Months |  |  | 12 Months or More |  |  | Total |
Description of Securities |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |
U.S. Gov’t sponsored entities |  | $ | 55,696 |  |  | $ | (540 | ) |  | $ | 34,754 |  |  | $ | (368 | ) |  | $ | 90,450 |  |  | $ | (908 | )
State & political subdivisions |  |  | 15,890 |  |  |  | (69 | ) |  |  | 4,104 |  |  |  | (245 | ) |  |  | 19,994 |  |  |  | (314 | )
Residential & multi-family mortgage |  |  | 30,144 |  |  |  | (153 | ) |  |  | 63,699 |  |  |  | (1,729 | ) |  |  | 93,843 |  |  |  | (1,882 | )
Corporate notes & bonds |  |  | 5,005 |  |  |  | (9 | ) |  |  | 9,042 |  |  |  | (453 | ) |  |  | 14,047 |  |  |  | (462 | )
Pooled SBA |  |  | 0 |  |  |  | (0 | ) |  |  | 22,270 |  |  |  | (575 | ) |  |  | 22,270 |  |  |  | (575 | )
Other equity securities |  |  | 0 |  |  |  | (0 | ) |  |  | 962 |  |  |  | (58 | ) |  |  | 962 |  |  |  | (58 | )
|  | $ | 106,735 |  |  | $ | (771 | ) |  | $ | 134,831 |  |  | $ | (3,428 | ) |  | $ | 241,566 |  |  | $ | (4,199 | )
|  | Less than 12 Months |  |  | 12 Months or More |  |  | Total |
|  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |
December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Gov’t sponsored entities |  | $ | 90,380 |  |  | $ | (579 | ) |  | $ | 0 |  |  | $ | (0 | ) |  | $ | 90,380 |  |  | $ | (579 | )
State & political subdivisions |  |  | 32,353 |  |  |  | (448 | ) |  |  | 264 |  |  |  | (201 | ) |  |  | 32,617 |  |  |  | (649 | )
Residential and multi-family mortgage |  |  | 65,598 |  |  |  | (1,255 | ) |  |  | 34,611 |  |  |  | (1,127 | ) |  |  | 100,209 |  |  |  | (2,382 | )
Corporate notes & bonds |  |  | 2,089 |  |  |  | (11 | ) |  |  | 8,476 |  |  |  | (951 | ) |  |  | 10,565 |  |  |  | (962 | )
Pooled SBA |  |  | 6,481 |  |  |  | (126 | ) |  |  | 20,560 |  |  |  | (792 | ) |  |  | 27,041 |  |  |  | (918 | )
Other equity securities |  |  | 0 |  |  |  | (0 | ) |  |  | 971 |  |  |  | (49 | ) |  |  | 971 |  |  |  | (49 | )
|  | $ | 196,901 |  |  | $ | (2,419 | ) |  | $ | 64,882 |  |  | $ | (3,120 | ) |  | $ | 261,783 |  |  | $ | (5,539 | )
The Corporation evaluates securities for other-than-temporary impairment on a quarterly basis, or more frequently when economic or market conditions warrant such an evaluation. At December 31, 2016 the Corporation evaluated the pooled trust preferred securities for other-than-temporary impairment by estimating the cash flows expected to be received, taking into account future estimated levels of deferrals and defaults by the underlying issuers and discounting those cash flows at the appropriate accounting yield. During 2017, two structured pooled trust preferred securities with an adjusted amortized cost of $800 were sold, resulting in a gain of $1,383. During 2016, two structured pooled trust preferred securities with an adjusted amortized cost of $0 were sold, resulting in a gain of $922. A roll-forward of the other-than-temporary impairment amount related to credit losses for the years ended December 31, 2017, 2016, and 2015 is as follows:
|  | 2017 |  |  | 2016 |  |  | 2015 |
Balance of credit losses on debt securities for which a portion of other-than-temporary impairment was recognized in earnings, beginning of period |  | $ | 2,071 |  |  | $ | 4,054 |  |  | $ | 4,054 |
Credit losses previously recognized on securities sold during the period |  |  | (2,071 | ) |  |  | (1,983 | ) |  |  | 0 |
Additional credit loss for which other-than-temporary impairment was not previously recognized |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Additional credit loss for which other-than-temporary impairment was previously recognized |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Balance of credit losses on debt securities for which a portion of other-than-temporary impairment was recognized in earnings, end of period |  | $ | 0 |  |  | $ | 2,071 |  |  | $ | 4,054 |
For the securities that comprise corporate notes and bonds and the securities that are issued by state and political subdivisions, management monitors publicly available financial information, such as filings with the Securities and Exchange Commission, in order to evaluate the securities for other-than-temporary impairment. For financial institution issuers, management monitors information from quarterly “call” report filings that are used to generate Uniform Bank Performance Reports. All other securities that were in an unrealized loss position at the balance sheet date were reviewed by management, and issuer-specific documents were reviewed, as appropriate given the following considerations. When reviewing securities for other-than-temporary impairment, management considers the financial condition and near-term prospects of the issuer and whether downgrades by bond rating agencies have occurred. Management also considers the length of time and extent to which fair value has been less than cost, and whether management does not have the intent to sell these securities and it is likely that it will not be required to sell the securities before their anticipated recovery. As of December 31, 2017 and 2016, management concluded that the securities described in the previous paragraph were not other-than-temporarily impaired for the following reasons:
| ● |  | There is no indication of any significant deterioration of the creditworthiness of the institutions that issued the securities.
| ● |  | All contractual interest payments on the securities have been received as scheduled, and no information has come to management’s attention through the processes previously described which would lead to a conclusion that future contractual payments will not be timely received.
The Corporation does not intend to sell and it is not more likely than not that it will be required to sell the securities in an unrealized loss position before recovery of its amortized cost basis. On December 31, 2017 and 2016, securities carried at $319,575 and $329,379, respectively, were pledged to secure public deposits and for other purposes as provided by law. The following is a schedule of the contractual maturity of securities available for sale, excluding equity securities, at December 31, 2017:
|  | December 31, 2017 |
|  | Amortized Cost |  |  | Fair Value |
1 year or less |  | $ | 50,368 |  |  | $ | 50,139 |
1 year – 5 years |  |  | 153,512 |  |  |  | 155,075 |
5 years – 10 years |  |  | 50,552 |  |  |  | 51,753 |
After 10 years |  |  | 6,184 |  |  |  | 6,104 |
|  |  | 260,616 |  |  |  | 263,071 |
Residential and multi-family mortgage |  |  | 111,214 |  |  |  | 109,636 |
Pooled SBA |  |  | 36,260 |  |  |  | 36,040 |
Total debt securities |  | $ | 408,090 |  |  | $ | 408,747 |
Mortgage securities and pooled SBA securities are not due at a single date; periodic payments are received based on the payment patterns of the underlying collateral. Information pertaining to security sales is as follows:
Year ended December 31 |  | Proceeds |  |  | Gross Gains |  |  | Gross Losses |
2017 |  | $ | 16,340 |  |  | $ | 1,614 |  |  | $ | 71 |
2016 |  |  | 4,420 |  |  |  | 1,005 |  |  |  | 0 |
2015 |  |  | 105,066 |  |  |  | 1,032 |  |  |  | 366 |
The tax provision related to these net realized gains was $540, $352 and $233, respectively. During 2017, 2016, and 2015, the Corporation sold trading securities. Proceeds were $1,091 in 2017, $540 in 2016 and $2,129 in 2015, resulting in net realized gains (losses) of $93 in 2017, $70 in 2016, and ($211) in 2015.

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- Definition The entire disclosure of cash, cash equivalents, and debt and equity securities, including any unrealized or realized gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -URI http://asc.fasb.org/topic&trid=2122426 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 + Details
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