Consolidated Condensed Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Unrealized net holding gain (loss) on securities available-for-sale, Tax expense (benefit)	$ 380	$ (1,174)	$ 2,551	$ 7,459