Note 11. Employee Benefit Plans

The Company maintains the Supplemental Executive Retention Plan (“SERP”) for key members of senior management. The following table presents the components of the SERP’s net periodic pension cost for the periods indicated:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2016		2015		2016		2015
(Amounts in thousands)
Service cost	$	35	$	33	$	107	$	100
Interest cost		79		71		237		211
Amortization of prior service cost		47		46		141		140
Amortization of losses		5		2		14		5

Net periodic cost	$	166	$	152	$	499	$	456

The Company maintains the Directors’ Supplemental Retirement Plan (the “Directors’ Plan”) for non-management directors. The following table presents the components of the Directors’ Plan’s net periodic pension cost for the periods indicated:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2016		2015		2016		2015
(Amounts in thousands)
Service cost	$	11	$	12	$	31	$	35
Interest cost		16		13		49		40
Amortization of prior service cost		10		18		29		54
Amortization of losses		7		15		21		45

Net periodic cost	$	44	$	58	$	130	$	174