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Pension and Other Benefits (Tables) | 12 Months Ended
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Dec. 31, 2017
Retirement Benefits [Abstract] |
Schedule of Changes in Projected Benefit Obligations [Table Text Block] | The following table sets forth changes in projected benefit obligation, changes in fair value of plan assets, funded status, and amounts recognized in the consolidated statements of condition for the Company’s pension plans at December 31, 2017 and 2016.
|  | 2017 |  |  | 2016 |
|  | (dollars in thousands) |
Change in Benefit Obligation: |  |  |  |  |  |  |  |
Projected benefit obligation at January 1, |  | $ | 12,682 |  |  | $ | 13,068 |
Interest cost |  |  | 478 |  |  |  | 514 |
Actuarial (gain) loss |  |  | 642 |  |  |  | 216 |
Benefits paid |  |  | - |  |  |  | - |
Settlements |  |  | (910) |  |  |  | (1,116) |
Projected benefit obligation at December 31, |  | $ | 12,892 |  |  | $ | 12,682 |
Change in Plan Assets: |  |  |  |  |  |  |  |
Fair value of plan assets at January 1, |  | $ | 12,002 |  |  | $ | 10,287 |
Actual return on plan assets |  |  | 1,517 |  |  |  | 831 |
Employer contributions |  |  | - |  |  |  | 2,000 |
Benefits paid |  |  | - |  |  |  | - |
Settlements |  |  | (910) |  |  |  | (1,116) |
Fair value of plan assets at December 31, |  | $ | 12,609 |  |  | $ | 12,002 |
Funded status |  | $ | (283) |  |  | $ | (680) |
Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block] | The Company expects to recognize approximately $366,000 of the net actuarial loss reported in the following table as of December 31, 2017 as a component of net periodic pension expense during 2018.
|  | 2017 |  |  | 2016 |  |  |  |  |
|  | (dollars in thousands) |  |  |  |  |
Net actuarial loss recognized in accumulated other comprehensive income |  | $ | 5,860 |  |  | $ | 6,272 |  |  |  |  |
Schedule of Net Benefit Costs [Table Text Block] | The net periodic pension expense and other comprehensive income (before tax) for 2017, 2016 and 2015 includes the following:
|  | 2017 |  |  | 2016 |  |  | 2015 |
|  | (dollars in thousands) |
Interest cost |  | $ | 478 |  |  | $ | 514 |  |  | $ | 519 |
Expected return on plan assets |  |  | (640) |  |  |  | (617) |  |  |  | (562) |
Net amortization |  |  | 412 |  |  |  | 407 |  |  |  | 433 |
Recognized settlement loss |  |  | - |  |  |  | - |  |  |  | 650 |
Total net periodic pension expense |  | $ | 250 |  |  | $ | 304 |  |  | $ | 1,040 |
Total gain recognized in other comprehensive income |  |  | (410) |  |  |  | (405) |  |  |  | (918) |
Total recognized in net periodic expense and other comprehensive income (before tax) |  | $ | (160) |  |  | $ | (101) |  |  | $ | 122 |
Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block] | The following table presents the weighted average assumptions used to determine the pension benefit obligations at December 31, for the following three years.
|  | 2017 |  |  | 2016 |  |  | 2015 |
Discount rate |  |  | 3.41 | % |  |  | 3.88 | % |  |  | 4.06 | %
Rate of compensation increase |  |  | N/A |  |  |  | N/A |  |  |  | N/A |
The following table presents the weighted average assumptions used to determine net periodic pension cost for the following three years:
|  | 2017 |  |  | 2016 |  |  | 2015 |
|  | (dollars in thousands) |
Discount rate |  |  | 3.88 | % |  |  | 4.06 | % |  |  | 3.76 | %
Expected long-term return on plan assets |  |  | 5.50 | % |  |  | 5.50 | % |  |  | 5.50 | %
Rate of compensation increase |  |  | N/A |  |  |  | N/A |  |  |  | N/A |
Schedule of Allocation of Plan Assets [Table Text Block] | The Company’s pension plan asset allocation as of December 31, 2017 and 2016, target allocation, and expected long-term rate of return by asset are as follows:
|  | Target Allocation |  |  | % of Plan Assets – Year Ended 2017 |  |  | % of Plan Assets – Year Ended 2016 |  |  | Weighted Average Expected Long-Term Rate of Return |
Equity Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Domestic |  |  | 42% |  |  |  | 41% |  |  |  | 44% |  |  |  | 3.2% |
International |  |  | 10% |  |  |  | 8% |  |  |  | 8% |  |  |  | 0.7% |
Debt and/or fixed income securities |  |  | 46% |  |  |  | 49% |  |  |  | 47% |  |  |  | 1.6% |
Cash and other alternative investments, including real estate funds, hedge funds and equity structured notes |  |  | 2% |  |  |  | 2% |  |  |  | 1% |  |  |  | 0% |
Total |  |  | 100% |  |  | $ | 100% |  |  | $ | 100% |  |  | $ | 5.5% |
Schedule of Changes in Fair Value of Plan Assets [Table Text Block] | The fair values of the Company’s pension plan assets at December 31, 2017 and 2016, by asset class, are as follows:
|  | December 31, 2017 |  |  | Fair Value Measurements at Reporting Date Using |
Asset Class |  |  |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
|  | (dollars in thousands) |
Cash |  | $ | 175 |  |  | $ | 175 |  |  | $ | - |  |  | $ | - |
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. companies |  |  | 5,175 |  |  |  | 5,175 |  |  |  | - |  |  |  | - |
International companies |  |  | 1,056 |  |  |  | 1,056 |  |  |  | - |  |  |  | - |
Debt and/or fixed income securities |  |  | 6,139 |  |  |  | 6,139 |  |  |  |  |  |  |  |  |
Real estate funds |  |  | 64 |  |  |  | 64 |  |  |  | - |  |  |  | - |
Total |  | $ | 12,609 |  |  | $ | 12,609 |  |  | $ | - |  |  | $ | - |
|  | December 31, 2016 |  |  | Fair Value Measurements at Reporting Date Using |
Asset Class |  |  |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
|  | (dollars in thousands) |
Cash |  | $ | 19 |  |  | $ | 19 |  |  | $ | - |  |  | $ | - |
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. companies |  |  | 5,221 |  |  |  | 5,221 |  |  |  | - |  |  |  | - |
International companies |  |  | 1,005 |  |  |  | 1,005 |  |  |  | - |  |  |  | - |
Debt and/or fixed income securities |  |  | 5,689 |  |  |  | 5,689 |  |  |  |  |  |  |  |  |
Real estate funds |  |  | 68 |  |  |  | 68 |  |  |  | - |  |  |  | - |
Total |  | $ | 12,002 |  |  | $ | 12,002 |  |  | $ | - |  |  | $ | - |
Schedule of Defined Benefit Plans Disclosures [Table Text Block] | The following benefit payments, which reflect expected future service, as appropriate, for the following years are as follows (dollars in thousands):
2018 |  | $ | 719 |
2019 |  |  | 729 |
2020 |  |  | 728 |
2021 |  |  | 739 |
2022 |  |  | 728 |
2023-2027 |  |  | 3,559 |

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