CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 14,845	$ 12,972	$ 12,482
Other comprehensive income (loss):
Net unrealized gain (loss) on available-for-sale securities (net of tax expense (benefit) of $(516), $285, and $(1,242) for 2018, 2017, and 2016, respectively)	(1,939)	585	(2,390)
Reclassification adjustment for net realized gain on sale of available-for-sale securities included in net income (net of tax expense (benefit) of $(2), $81, and $370 for 2018, 2017 and 2016, respectively)	6	(152)	(712)
Change in nonqualified pension plan unrecognized net gain (loss) and unrecognized prior service cost (net of tax expense (benefit) of $21, $(53), and $128 for 2018, 2017, and 2016, respectively)	81	(158)	249
Other comprehensive income (loss)	(1,852)	275	(2,853)
TOTAL COMPREHENSIVE INCOME	12,993	13,247	9,629
COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX, AS OF YEAR-END:
Net unrealized loss on securities available-for-sale	(4,631)	(2,200)	(2,633)
Net unfunded benefit (liability) for nonqualified pension plan	(88)	(142)	16
Balance at year-end	$ (4,719)	$ (2,342)	$ (2,617)