Consolidated Statements of Comprehensive Income - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net income	$ 49,456,000	$ 42,024,000	$ 31,274,000
Other comprehensive income (loss):
Unrealized holding gains (losses) on securities available for sale	15,106,000	(4,225,000)	2,297,000
Fair value of interest rate swap	0	2,000	82,000
Total other comprehensive income (loss)	15,106,000	(4,223,000)	2,379,000
Tax effect of unrealized holding gains (losses) on securities available for sale	(3,172,000)	846,000	(804,000)
Tax effect of fair value of interest rate swap	0	(1,000)	(28,000)
Total tax effect of other comprehensive income (loss)	(3,172,000)	845,000	(832,000)
Other comprehensive income (loss), net of tax effect	11,934,000	(3,378,000)	1,547,000
Comprehensive income	$ 61,390,000	$ 38,646,000	$ 32,821,000