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Income Taxes (Details 1) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Statutory tax									$ 8,039	$ 11,606	$ 9,815
Effect of nontaxable interest									(1,439)	(2,054)	(1,684)
Bank owned life insurance, net									(182)	(291)	(283)
Tax credits									24	(371)	(367)
Effect of nontaxable insurance premiums									(188)	(348)	(143)
Stock compensation									(486)	0	0
Impact of enactment of federal tax reform									0	1,793	0
Nondeductible acquisition costs									0	70	40
Other									(54)	45	107
TOTALS	$ 1,585	$ 1,183	$ 1,587	$ 1,359	$ 4,179	$ 2,105	$ 2,099	$ 2,067	$ 5,714	$ 10,450	$ 7,485

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