Retirement Plans (Tables)

12 Months Ended

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