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Retirement Plans (Tables) | 12 Months Ended
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Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Costs of Retirement Plans [Table Text Block] |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Twelve Months Ended
﻿ |  | December 31,
﻿ |  | 2016 |  | 2015 |  | 2014
﻿ |  |
﻿United States | $ | 1,813 | $ | 2,434 | $ | 2,425
﻿Canada |  | 225 |  | 226 |  | 227
﻿United Kingdom |  | 376 |  | 494 |  | 158
﻿ | $ | 2,414 | $ | 3,154 | $ | 2,810
﻿
Other Post-Retirement Benefit Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Assumptions Used [Table Text Block] |
﻿ |  |  |  |  |
﻿ |  |  |  |  |
﻿ |  | 2016 |  | 2015 |
﻿Discount rate |  | 4.0 | % | 4.2 | %
﻿Weighted average health care trend rate |  | 5.1 | % | 5.0 | %
﻿
UNITED STATES |
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Changes in Accumulated Postemployment Benefit Obligations [Table Text Block] |
﻿ |  |  |  |
﻿ |  |  |  |
﻿ |  | 2016 |  | 2015
﻿ |  |
﻿Changes in benefit obligation: |  |  |  |
﻿Benefit obligation at beginning of year | $ | 17,759 | $ | 18,925
﻿Service cost |  | 36 |  | 38
﻿Interest cost |  | 746 |  | 742
﻿Actuarial loss (gain) |  | 534 |  | (1,148)
﻿Benefits paid |  | (834) |  | (798)
﻿Benefit obligation at end of year | $ | 18,241 | $ | 17,759
﻿
Schedule of Changes in Fair Value of Plan Assets [Table Text Block] |
﻿ |  |  |  |
﻿ |  |  |  |
﻿Change to plan assets: |  |  |  |
﻿Fair value of assets at beginning of year | $ | 14,235 | $ | 15,205
﻿Actual gain (loss) on plan assets |  | 779 |  | (172)
﻿Employer contribution |  | - |  | -
﻿Benefits paid |  | (834) |  | (798)
﻿Fair value of assets at end of year |  | 14,180 |  | 14,235
﻿Funded status at end of year | $ | (4,061) | $ | (3,524)
﻿
Schedule of Amounts Recognized in Balance Sheet [Table Text Block] |
﻿ |  |  |  |
﻿ |  |  |  |
﻿Amounts recognized in the consolidated balance sheet consist of: |  |  |  |
﻿Other long-term liabilities | $ | (4,061) | $ | (3,524)
﻿
Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block] |
﻿ |  |  |  |
﻿ |  |  |  |
﻿Amounts recognized in accumulated other comprehensive income consist of: |  |  |  |
﻿Net loss | $ | 4,186 | $ | 3,993
﻿
Schedule of Net Benefit Costs [Table Text Block] |
﻿ |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |
﻿ |  | 2016 |  | 2015 |  | 2014 |
﻿Components of net periodic benefit cost: |  |  |
﻿Service cost | $ | 36 | $ | 38 | $ | 23 |
﻿Interest cost |  | 746 |  | 742 |  | 771 |
﻿Expected return on plan assets |  | (717) |  | (816) |  | (968) |
﻿Amortization of prior service cost |  | - |  | 3 |  | 1 |
﻿Recognized net actuarial loss |  | 276 |  | 275 |  | 65 |
﻿Net periodic pension cost (income) | $ | 341 | $ | 242 | $ | (108) |
﻿
Schedule of Assumptions Used [Table Text Block] | The weighted average assumptions in the following table represent the rates used to develop the actuarial present value of the projected benefit obligation for the year listed and also the net periodic benefit cost for the following year. ﻿
﻿ |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |
﻿ |  | 2016 |  | 2015 |  | 2014 |
﻿Discount rate |  | 4.3 | % | 4.3 | % | 4.0 | %
﻿Expected rate of return on plan assets |  | 5.2 | % | 5.2 | % | 5.5 | %
﻿
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block] |
﻿ |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |
﻿ |  |  |  | 2016 |  | 2015 |
﻿ |  |  |  |  |
﻿Projected benefit obligation |  |  | $ | 18,241 | $ | 17,759 |
﻿Accumulated benefit obligation |  |  |  | 18,241 |  | 17,759 |
﻿Fair value of plan assets |  |  |  | 14,180 |  | 14,235 |
﻿
Schedule of Allocation of Plan Assets [Table Text Block] |
﻿ |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |
﻿ |  | Target |  | 2016 |  | 2015 |
﻿Asset Category |  |  |  |  |  |  |
﻿Cash and cash equivalents |  | 0 - 10 | % | 5 | % | 9 | %
﻿Total fixed income funds |  | 25 - 50 |  | 33 |  | 35 |
﻿Total mutual funds and equities |  | 50 - 70 |  | 62 |  | 56 |
﻿Total |  |  |  | 100 | % | 100 | %
﻿ In accordance with the fair value disclosure requirements of FASB ASC 820, “Fair Value Measurements and Disclosures,” the following assets were measured at fair value on a recurring basis at December 31, 2016 and 2015. Additional information regarding FASB ASC 820 and the fair value hierarchy can be found in Note 18 Fair Value Measurements. ﻿
﻿ |  |  |  |
﻿ |  |  |  |
﻿ |  |
﻿ |  | 2016 |  | 2015
﻿ |  |
﻿Asset Category |  |  |  |
﻿Cash and cash equivalents | $ | 660 | $ | 1,248
﻿Fixed income funds |  |  |  |
﻿Corporate bonds |  | 4,767 |  | 4,926
﻿Total fixed income funds |  | 4,767 |  | 4,926
﻿Equity funds and equities |  |  |  |
﻿Mutual funds |  | 8,753 |  | 8,061
﻿Common stock |  | - |  | -
﻿Total mutual funds and equities |  | 8,753 |  | 8,061
﻿Total | $ | 14,180 | $ | 14,235
﻿
Schedule of Expected Benefit Payments [Table Text Block] |
﻿ |  |
﻿ |  |
﻿ |  | Pension
﻿ |  | Benefits
﻿ |  |
﻿2017 | $ | 894
﻿2018 |  | 905
﻿2019 |  | 972
﻿2020 |  | 1,013
﻿2021 |  | 1,078
﻿Years 2022-2026 |  | 5,647
﻿
UNITED KINGDOM |
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Changes in Accumulated Postemployment Benefit Obligations [Table Text Block] |
﻿ |  |  |  |
﻿ |  |  |  |
﻿ |  | 2016 |  | 2015
﻿ |  |
﻿Changes in benefit obligation: |  |  |  |
﻿Benefit obligation at beginning of year | $ | 7,862 | $ | 8,797
﻿Interest cost |  | 259 |  | 295
﻿Actuarial (gain) loss |  | 1,532 |  | (416)
﻿Benefits paid |  | (273) |  | (339)
﻿Foreign currency exchange rate changes |  | (1,276) |  | (475)
﻿Benefit obligation at end of year | $ | 8,104 | $ | 7,862
﻿
Schedule of Changes in Fair Value of Plan Assets [Table Text Block] |
﻿ |  |  |  |
﻿ |  |  |  |
﻿Change to plan assets: |  |  |  |
﻿Fair value of assets at beginning of year | $ | 6,661 | $ | 6,757
﻿Actual gain on plan assets |  | 265 |  | 307
﻿Employer contribution |  | 253 |  | 302
﻿Benefits paid |  | (273) |  | (339)
﻿Foreign currency exchange rate changes |  | (1,080) |  | (366)
﻿Fair value of assets at end of year |  | 5,826 |  | 6,661
﻿Funded status at end of year | $ | (2,278) | $ | (1,201)
﻿
Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block] |
﻿ |  |  |  |
﻿ |  |  |  |
﻿ |  |  |  |
﻿Amounts recognized in the consolidated balance sheet consist of: |  |  |  |
﻿Other long-term liabilities | $ | (2,278) | $ | (1,201)
﻿ |  |  |  |
﻿ |  |  |  |
﻿Amounts recognized in accumulated other comprehensive income consist of: |  |  |  |
﻿Net loss | $ | 2,015 | $ | 706
﻿Prior service cost |  | 53 |  | 85
﻿ | $ | 2,068 | $ | 791
﻿
Schedule of Net Benefit Costs [Table Text Block] | Net periodic pension costs for the three years ended December 31 are as follows: ﻿ ﻿
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | 2016 |  | 2015 |  | 2014
﻿Components of net periodic benefit cost: |  |
﻿Interest cost | $ | 259 | $ | 295 | $ | 360
﻿Expected return on plan assets |  | (290) |  | (324) |  | (370)
﻿Amortization of transition obligation |  | - |  | - |  | (50)
﻿Amortization of prior service cost |  | 17 |  | 27 |  | 30
﻿Recognized net actuarial loss |  | 275 |  | 225 |  | 185
﻿Net periodic pension cost | $ | 261 | $ | 223 | $ | 155
﻿
Schedule of Assumptions Used [Table Text Block] |
﻿ |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |
﻿ |  | 2016 |  | 2015 |  | 2014 |
﻿Discount rate |  | 2.7 | % | 4.0 | % | 3.6 | %
﻿Expected rate of return on plan assets |  | 4.4 | % | 5.2 | % | 5.0 | %
﻿
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block] |
﻿ |  |  |  |  |
﻿ |  |  |  |  |
﻿ |  | 2016 |  | 2015 |
﻿ |  |  |
﻿Projected benefit obligation | $ | 8,104 | $ | 7,862 |
﻿Accumulated benefit obligation |  | 8,104 |  | 7,862 |
﻿Fair value of plan assets |  | 5,826 |  | 6,661 |
﻿
Schedule of Allocation of Plan Assets [Table Text Block] |
﻿ |
﻿ |
﻿ | Portec Rail
﻿ | Plan
﻿Equity securities | Up to 100%
﻿Commercial property | Not to exceed 50%
﻿U.K. Government securities | Not to exceed 50%
﻿Cash | Up to 100%
﻿ Plan assets held within the Portec Rail Plan consist of cash and marketable securities that have been classified as Level 1 of the fair value hierarchy. All other plan assets have been classified as Level 2 of the fair value hierarchy. ﻿ The plan assets by category for the two years ended December 31, 2016 and 2015 are as follows: ﻿
﻿ |  |  |  |  |
﻿ |  |  |  |  |
﻿ |  |  |
﻿ |  | 2016 |  | 2015 |
﻿Asset Category |  |  |
﻿Cash and cash equivalents | $ | 707 | $ | 242 |
﻿Equity securities |  | 2,617 |  | 2,656 |
﻿Bonds |  | 1,347 |  | 1,301 |
﻿Other |  | 1,155 |  | 2,462 |
﻿Total | $ | 5,826 | $ | 6,661 |
﻿
Schedule of Expected Benefit Payments [Table Text Block] |
﻿ |  |
﻿ |  |
﻿ |  | Pension
﻿ |  | Benefits
﻿ |  |
﻿2017 | $ | 219
﻿2018 |  | 238
﻿2019 |  | 252
﻿2020 |  | 268
﻿2021 |  | 274
﻿Years 2022-2026 |  | 1,750
﻿

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