CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 4,727	$ 4,201	$ 14,082	$ 9,652
Other comprehensive income (loss):
Net unrealized gain (loss) on available-for-sale debt securities (net of taxes of $221 and $(281) for the three months ended September 30, 2019 and 2018, respectively, and $1,457 and $(1,218) for the nine months ended September 30, 2019 and 2018, respectively)	829	(1,058)	5,482	(4,581)
Reclassification adjustment for net realized losses on sales of available-for-sale debt securities included in net income (net of taxes of $4 and $2 for the three months ended September 30, 2019 and 2018, respectively, and $8 and $2 for the nine months ended September 30, 2019 and 2018, respectively)	(16)	(5)	(29)	(6)
Change in nonqualified pension plan unrecognized net loss and unrecognized prior service cost (net of taxes of $1 and $3 for the three and nine months ended September 30, 2018, respectively)	0	3	0	9
Other comprehensive income (loss), net of tax	845	(1,050)	5,511	(4,566)
TOTAL COMPREHENSIVE INCOME	$ 5,572	$ 3,151	$ 19,593	$ 5,086