Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Unrealized gain (loss) on securities, tax expense (benefit)	$ 260	$ 434	$ 74	$ 159
Accretion of unrealized loss on securities reclassified to held-to-maturity, tax expense	$ 85	171	$ 460	518
Reclassification adjustment for losses included in net income, tax benefit		$ 52		$ 53