Accumulated Comprehensive Loss, Reclassification (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
AOCI Attributable to Parent [Abstract]
Available for sale security gains, net				$ 78	$ (1)
Provision for income taxes		$ (1,066)	$ (936)	(2,817)	(2,558)
NET INCOME		5,196	4,581	14,447	13,519
Amount Reclassified from Accumulated Comprehensive Income (Loss) [Member]
AOCI Attributable to Parent [Abstract]
NET INCOME	[1]	(41)	(42)	(137)	(116)
Unrealized Gain Loss on Available for Sale Securities [Member] | Amount Reclassified from Accumulated Comprehensive Income (Loss) [Member]
AOCI Attributable to Parent [Abstract]
Available for sale security gains, net	[1]	8	(8)	8	(8)
Provision for income taxes	[1]	(2)	2	(2)	2
NET INCOME	[1]	6	(6)	6	(6)
Defined Benefit Pension Items [Member] | Amount Reclassified from Accumulated Comprehensive Income (Loss) [Member]
AOCI Attributable to Parent [Abstract]
Other expenses	[1]	(60)	(47)	(181)	(140)
Provision for income taxes	[1]	13	11	38	30
NET INCOME	[1]	$ (47)	$ (36)	$ (143)	$ (110)

[1] Amounts in parentheses indicate expenses and other amounts indicate income on the Consolidated Statement of Income.