Income Taxes (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Schedule Of Effective Income Taxes Rate Reconciliation [Line Items]
Tax expense at U.S. statutory rates	$ 4,017	$ 5,716	$ 7,665
State tax expense (benefit), net of federal benefit	1,134	(769)	926
Other, net	549	633	282
Federal tax reform - deferred tax rate change	0	(11,500)	0
Total Income Tax Provision	$ 5,700	$ (5,920)	$ 8,873