Retirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2018

Retirement Benefit Plans [Abstract]

Significant Disclosures Relating to Benefit Plans

Significant disclosures relating to these benefit plans for the second quarter and first six months of fiscal years 2018 and 2017 are as follows:

	Pension Benefits
	Six Months Ended						Three Months Ended
	June 30, 2018			July 1, 2017			June 30, 2018			July 1, 2017
Service cost	$	659,922		$	634,718		$	329,901		$	317,358
Interest cost		1,553,583			1,582,112			776,791			791,055
Expected return on plan assets		(2,609,758	)		(2,391,787	)		(1,304,878	)		(1,195,892	)
Amortization of prior service cost		65,381			72,874			32,690			36,436
Amortization of the net loss		555,056			615,743			277,528			307,873
Net periodic benefit cost	$	224,184		$	513,660		$	112,032		$	256,830

	Postretirement Benefits
	Six Months Ended						Three Months Ended
	June 30, 2018			July 1, 2017			June 30, 2018			July 1, 2017
Service cost	$	18,512		$	13,695		$	9,256		$	6,848
Interest cost		38,581			40,414			19,291			20,207
Expected return on plan assets		(27,825	)		(25,747	)		(13,912	)		(12,873	)
Amortization of prior service cost		(2,536	)		(10,722	)		(1,268	)		(5,361	)
Amortization of the net loss		(32,796	)		(38,801	)		(16,398	)		(19,401	)
Net periodic benefit cost	$	(6,064	)	$	(21,161	)	$	(3,031	)	$	(10,580	)

Defined Contribution Plan

The Company made contributions to the plan as follows:

	Six Months Ended						Three Months Ended
	June 30, 2018			July 1, 2017			June 30, 2018			July 1, 2017
Regular matching contribution		$	306,121		$	235,423		$	140,106		$	118,947
Transitional credit contribution			205,614			231,072			81,506			95,702
Non-discretionary contribution			540,831			323,232			16,458			15,664
Total contributions for the period		$	1,052,566		$	789,727		$	238,070		$	230,313