Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020	Dec. 31, 2019		Mar. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent	$ 263,431	$ 235,701	$ 263,431	$ 235,701	$ 256,025	$ 247,764	[1]	$ 233,630	$ 219,830
Other Comprehensive Income (Loss), Net of Tax	2,491	1,107	787	3,237
Accumulated Pension Plan Adjustment Net Unamortized Gain Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent	(140)	(328)	(140)	(328)	(140)	(140)		(328)	0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0	0	0	(328)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax	0	0	0	(328)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent	48	139	48	139	48	48		139	139
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0	0	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax	0	0	0	0
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent	(2,417)	(737)	(2,417)	(737)	(1,602)	(518)		(323)	(314)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(815)	(414)	(1,899)	(423)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax	(815)	(414)	(1,899)	(423)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent	5,831	3,147	5,831	3,147	2,525	3,145		1,626	(841)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	3,306	2,346	3,475	4,810
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	(825)	(789)	(822)
Other Comprehensive Income (Loss), Net of Tax	3,306	1,521	2,686	3,988
Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent	3,322	2,221	3,322	2,221	$ 831	$ 2,535		$ 1,114	$ (1,016)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	2,491	1,932	1,576	4,059
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	(825)	(789)	(822)
Other Comprehensive Income (Loss), Net of Tax	$ 2,491	$ 1,107	$ 787	$ 3,237

[1] Derived from audited consolidated financial statements