CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 2,713	$ 3,246
Other comprehensive income (loss):
Net unrealized gain (loss) on available-for-sale securities (net of taxes of $(792) and $256 for the three months ended March 31, 2018 and 2017, respectively)	(2,979)	528
Change in nonqualified pension plan unrecognized net loss and unrecognized prior service cost (net of taxes of $1 for the three months ended March 31, 2018)	3	0
Other comprehensive income (loss), net of tax	(2,976)	528
TOTAL COMPREHENSIVE INCOME (LOSS)	$ (263)	$ 3,774