Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Consolidated Statements of Comprehensive Income [Abstract]
Net Income	$ 45,527	$ 28,370	$ 29,723
Other Comprehensive Loss
Net Unrealized Loss on Available-for-Sale Securities	(4,343)	(1,011)	(1,330)
Deferred Tax Benefit Related to Unrealized Losses	1,284	281	559
Reclassification Adjustment for Realized Loss (Gain) on Available-for-Sale Securities Included in Net Income	1,261	(131)	284
Tax (Benefit) Expense Related to Reclassification Adjustment	(373)	55	(119)
Change in Net Unrealized Loss on Available-for-Sale Securities, Net of Tax	(2,171)	(806)	(606)
Total Other Comprehensive Loss	(2,171)	(806)	(606)
Comprehensive Income	$ 43,356	$ 27,564	$ 29,117