Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net income	$ 9,446,000	$ 7,343,000	$ 20,327,000	$ 14,958,000
Other comprehensive income (loss):
Unrealized holding gains (losses) on securities available for sale	(432,000)	6,233,000	(7,574,000)	7,213,000
Fair value of interest rate swap	0	15,000	2,000	57,000
Total other comprehensive income (loss)	(432,000)	6,248,000	(7,572,000)	7,270,000
Tax effect of unrealized holding gains (losses) on securities available for sale	49,000	(2,182,000)	1,549,000	(2,525,000)
Tax effect of fair value of interest rate swap	0	(5,000)	(1,000)	(20,000)
Total tax effect of other comprehensive income	49,000	(2,187,000)	1,548,000	(2,545,000)
Other comprehensive income (loss), net of tax	(383,000)	4,061,000	(6,024,000)	4,725,000
Comprehensive income	$ 9,063,000	$ 11,404,000	$ 14,303,000	$ 19,683,000