Accumulated Comprehensive Loss, Reclassification (Details) - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
AOCI Attributable to Parent [Abstract]
Available for sale securities gains, net				$ (1,000)	$ 204,000
Provision for income taxes		$ (936,000)	$ (1,141,000)	(2,558,000)	(3,097,000)
NET INCOME		4,581,000	3,650,000	13,519,000	10,421,000
Amount Reclassified from Accumulated Comprehensive Income (Loss) [Member]
AOCI Attributable to Parent [Abstract]
NET INCOME	[1]	(42,000)	(31,000)	(116,000)	24,000
Unrealized Gains and Losses on Available for Sale Securities [Member] | Amount Reclassified from Accumulated Comprehensive Income (Loss) [Member]
AOCI Attributable to Parent [Abstract]
Available for sale securities gains, net	[1]	(8,000)	9,000	(8,000)	204,000
Provision for income taxes	[1]	2,000	(3,000)	2,000	(69,000)
NET INCOME	[1]	(6,000)	6,000	(6,000)	135,000
Defined Benefit Pension Items [Member] | Amount Reclassified from Accumulated Comprehensive Income (Loss) [Member]
AOCI Attributable to Parent [Abstract]
Other expenses	[1]	(47,000)	(56,000)	(140,000)	(168,000)
Provision for income taxes	[1]	11,000	19,000	30,000	57,000
NET INCOME	[1]	$ (36,000)	$ (37,000)	$ (110,000)	$ (111,000)

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