CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net earnings	$ 1,075	$ 6,043	$ 7,353	$ 11,380
Unrealized gains on securities
Unrealized holding gains arising during the period	11,382	3,325	12,486	8,484
Unrealized gains on held to maturity securities transferred to available for sale			2,265
Amortization of net unrealized gains on held to maturity securities		4	46	9
Reclassification adjustment for net losses included in net earnings		22		22
Tax effect	(2,390)	(719)	(3,100)	(1,805)
Unrealized gains on securities, net of tax	8,992	2,632	11,697	6,710
Unrealized holding losses arising during the period on interest rate swaps	(243)	(91)	(829)	(174)
Total other comprehensive income	8,749	2,541	10,868	6,536
Comprehensive income	$ 9,824	$ 8,584	$ 18,221	$ 17,916