Employee Benefits Plans (Tables)

12 Months Ended

Dec. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Deferred Compensation Arrangement with Individual Disclosure, Postretirement Benefits [Table Text Block]

	2016		2015
Growth in cash surrender value of corporate-owned     life insurance policies	$	301	$	1,701
Deferred compensation plan expenses		352		506
Operating income impact		(51)		1,195
Interest expense on loans against corporate-owned     life insurance polices		109		948
Net income impact	$	(160)	$	247

Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]

	2016		2015
Change in benefit obligation:
Beginning benefit obligation	$	4,749	$	5,412
Interest cost		160		182
Actuarial loss (gain)		210		(395)
Benefits paid		(450)		(450)
Ending benefit obligation	$	4,669	$	4,749
Change in plan assets:
Beginning fair value of plan assets		-		-
Employer contributions		450		450
Benefits paid		(450)		(450)
Ending fair value of plan assets		-		-
Funded status	$	(4,669)	$	(4,749)

	Supplemental Retirement Plan				Other Postretirement Benefits
	2016		2015		2016		2015
Change in benefit obligation:
Beginning benefit obligation	$	1,952	$	2,129	$	827	$	932
Interest cost		68		72		23		26
Plan participants’ contributions		-		-		46		50
Actuarial (gain) loss		14		(93)		(51)		(9)
Benefits paid		(155)		(156)		(135)		(172)
Ending benefit obligation	$	1,879	$	1,952	$	710	$	827
Change in plan assets:
Beginning fair value of plan assets		-		-		-		-
Employer contributions		155		156		89		122
Plan participants’ contributions		-		-		46		50
Benefits paid		(155)		(156)		(135)		(172)
Ending fair value of plan assets		-		-		-		-
Funded status	$	(1,879)	$	(1,952)	$	(710)	$	(827)

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

	2016		2015
Current liabilities	$	(450)	$	(448)
Noncurrent liabilities		(4,219)		(4,301)
Total	$	(4,669)	$	(4,749)

	Supplemental Retirement Plan				Other Postretirement Benefits
	2016		2015		2016		2015
Current liabilities	$	(155)	$	(155)	$	(88)	$	(92)
Noncurrent liabilities		(1,724)		(1,797)		(622)		(735)
Total	$	(1,879)	$	(1,952)	$	(710)	$	(827)

Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

	2016		2015
Net loss	$	1,752	$	1,614

	Supplemental Retirement Plan				Other Postretirement Benefits
	2016		2015		2016		2015
Net loss (gain)	$	686	$	704	$	(182)	$	(149)

	Supplemental Retirement Plan		Other Postretirement Benefits
Net loss (gain)	$	33	$	(16)

Schedule of Net Benefit Costs [Table Text Block]

	2016		2015
Net periodic benefit cost:
Interest cost	$	160	$	182
Amortization of net loss		72		93
Net periodic benefit cost	$	232	$	275
Other changes in plan assets and benefit obligations     recognized in other comprehensive (loss) income:
Net loss (gain)	$	210	$	(395)
Amortization of net loss		(72)		(93)
Total recognized in other comprehensive (loss) income		138		(488)
Total recognized in net periodic benefit cost and other     comprehensive (loss) income	$	370	$	(213)

	Supplemental Retirement Plan				Other Postretirement Benefits
	2016		2015		2016		2015
Net periodic benefit cost:
Interest cost	$	68	$	72	$	23	$	26
Amortization of net loss (gain)		32		36		(17)		(13)
Amortization of prior service cost		-		-		-		(92)
Net periodic benefit cost (income)	$	100	$	108	$	6	$	(79)
Other changes in plan assets and benefit obligations     recognized in other comprehensive income (loss):
Net loss (gain)	$	14	$	(93)	$	(51)	$	(9)
Amortization of net (loss) gain		(32)		(36)		17		13
Amortization of prior service cost		-		-		-		92
Total recognized in other comprehensive     (loss) income	$	(18)	$	(129)	$	(34)	$	96
Total recognized in net periodic benefit cost     and other comprehensive (loss) income	$	82	$	(21)	$	(28)	$	17

Schedule of Assumptions Used [Table Text Block]

	2016	2015
Discount rate for funded status	3.50%	3.55%
Discount rate for benefit cost	3.55%	3.50%

		Supplemental Retirement Plan			Other Postretirement Benefits
	2016		2015		2016		2015
Discount rate for funded status		3.55%		3.65%		3.20%		3.20%
Discount rate for benefit cost		3.65%		3.50%		3.20%		3.10%
Health care cost assumed trend rate     for next year						6.00%		6.50%
Rate that the cost trend rate gradually     declines to						5.50%		5.50%
Year that the rate reaches the rate it is     assumed to remain at						2018		2018

Schedule of Expected Benefit Payments [Table Text Block]

2017	$	450
2018		402
2019		391
2020		381
2021		364
2022 - 2026		1,582
Estimated contributions for 2017	$	450

	Supplemental Retirement Plan		Other Postretirement Benefits
Estimated net future benefit payments:
2017	$	155	$	88
2018		152		80
2019		148		76
2020		145		72
2021		141		67
2022 - 2026		645		259
Estimated contributions for 2017	$	155	$	88