Change in Accumulated Other Comprehensive Income (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassifications from other comprehensive (loss) income	$ 17	$ (3)	$ 98
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassifications from other comprehensive (loss) income	17	(10)	98
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	4	(4)	33
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassifications from other comprehensive (loss) income	$ 0	7	$ 0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax		$ 2