Pension and Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2017

Pension and Retirement Plans [Abstract]

Benefit obligations, plan assets and the funded status of plans

The following provides information regarding benefit obligations, plan assets and the funded status of the plan:

	Pension Benefits
	2017			2016
Change in benefit obligation
Benefit obligation, beginning of year	$	16,104		$	15,565
Interest cost		630			650
Actuarial loss		867			514
Benefits paid		(685	)		(625	)
Benefit obligation, end of year		16,916			16,104
Accumulated benefit obligation		16,916			16,104
Change in plan assets
Fair value of plan assets, beginning of year		13,241			12,688
Actual gain on plan assets		1,746			763
Employer contribution		415			415
Benefits paid		(685	)		(625	)
Fair value of plan assets, end of year		14,717			13,241
Funded status, end of year	$	(2,199	)	$	(2,863	)

Schedule of amounts recognized in balance sheet

Amounts recognized in the consolidated balance sheets
Noncurrent liabilities	$	(2,199	)	$	(2,863	)
Net amount recognized	$	(2,199	)	$	(2,863	)

Schedule of defined benefit plan amounts recognized in other comprehensive loss

Amounts recognized in accumulated other comprehensive loss consist of
Net loss	$	5,463	$	6,152
Net amount recognized	$	5,463	$	6,152

Schedule of assumptions used

Weighted average assumptions used to determine benefit obligations as of December 31
Discount rate	3.50	%	4.00	%
Expected return on plan assets	6.25	%	6.25	%
Rate of compensation increase	N/A		N/A

Allocation of pension plan assets and target allocation range of assets

The allocation of assets within the mutual fund as of December 31 and the target asset allocation ranges by asset category are as follows:

Asset Category	Actual Allocation 2017			Actual Allocation 2016			2017 & 2016 Target Allocation Ranges
Equity securities		49.4	%		63.6	%		40 - 65	%
Debt securities		43.2	%		33.5	%		30 - 50	%
Cash and Equivalents		7.4	%		2.9	%		0 - 15	%
Total		100.0	%		100.0	%

Periodic benefit costs for defined benefit plans

Net periodic benefit cost for 2017, 2016 and 2015 included the following components:

	Pension Benefits
	2017			2016			2015
Components of net periodic benefit cost
Interest cost	$	630		$	650		$	596
Expected return on plan assets		(720	)		(782	)		(840	)
Amortization of actuarial loss		530			480			500
Net periodic benefit cost		440			348			256
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss)
Net actuarial gain (loss) for the year		(159	)		533			702
Amortization of net loss		(530	)		(480	)		(500	)
Total recognized in other comprehensive income (loss)		(689	)		53			202
Total recognized in net periodic benefit cost and other comprehensive income (loss)	$	(249	)	$	401		$	458
Weighted average assumptions used to determine net periodic benefit cost for years ended December 31
Discount rate		4.00	%		4.28	%		3.81	%
Expected return on plan assets		6.25	%		7.00	%		7.00	%

Summary of estimated future benefit payments

The following estimated future benefit payments are expected in the years indicated:

	Pension Benefits
2018	$	800
2019		830
2020		860
2021		890
2022		9,100
2023 - 2027		4,810

Assets of the supplemental executive retirement plan

Assets of the SERP consist of the following:

	December 31, 2017						December 31, 2016
	Cost			Market			Cost			Market
Company stock		$	1,960		$	3,589		$	1,958		$	4,455
Equity securities			4,589			4,963			3,474			3,427
Total		$	6,549		$	8,552		$	5,432		$	7,882