Retirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2017

Retirement Benefit Plans [Abstract]

Significant disclosures relating to benefit plans

Significant disclosures relating to these benefit plans for the third quarter and first nine months of fiscal years 2017 and 2016 are as follows:

	Pension Benefits
	Nine Months Ended						Three Months Ended
	September 30, 2017			October 1, 2016			September 30, 2017			October 1, 2016
Service cost	$	952,078		$	1,612,278		$	317,360		$	270,721
Interest cost		2,373,167			2,541,968			791,055			767,625
Expected return on plan assets		(3,587,682	)		(3,603,483	)		(1,195,895	)		(1,121,311	)
Amortization of prior service cost		109,312			150,427			36,438			50,143
Amortization of the net loss		923,614			1,319617			307,871			277,469
Net periodic benefit cost	$	770,489		$	2,020,807		$	256,829		$	244,647

	Postretirement Benefits
	Nine Months Ended						Three Months Ended
	September 30, 2017			October 1, 2016			September 30, 2017			October 1, 2016
Service cost	$	20,542		$	21,975		$	6,847		$	7,325
Interest cost		60,620			71,154			20,206			23,718
Expected return on plan assets		(38,621	)		(35,649	)		(12,874	)		(11,883	)
Amortization of prior service cost		(16,083	)		(17,918	)		(5,361	)		(5,973	)
Amortization of the net loss		(58,201	)		(70,441	)		(19,400	)		(23,480	)
Net periodic benefit cost	$	(31,743	)	$	(30,879	)	$	(10,582	)	$	(10,293	)

Defined Contribution Plan

The Company made contributions to the plan as follows:

	Nine Months Ended						Three Months Ended
	September 30, 2017			October 1, 2016			September 30, 2017			October 1, 2016
Regular matching contribution		$	346,713		$	226,090		$	111,291		$	94,042
Transitional credit contribution			307,597			136,416			76,526			94,868
Non-discretionary contribution			339,220			51,470			15,987			--
Total contributions for the period		$	993,530		$	413,976		$	203,804		$	188,910