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Income Taxes (Details 1) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Statutory tax									$ 9,046	$ 8,039	$ 11,606
Effect of nontaxable interest									(1,655)	(1,439)	(2,054)
Bank owned life insurance, net									(171)	(182)	(291)
Tax credits									3	24	(371)
Effect of nontaxable insurance premiums									(204)	(188)	(348)
Stock compensation									(100)	(486)	0
Impact of enactment of federal tax reform									0	0	1,793
Nondeductible acquisition costs									0	0	70
Other									396	(54)	45
TOTALS	$ 2,186	$ 2,071	$ 1,488	$ 1,570	$ 1,585	$ 1,183	$ 1,587	$ 1,359	$ 7,315	$ 5,714	$ 10,450

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