Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net income	$ 7,615,000	$ 8,549,000
Other comprehensive income (loss):
Unrealized holding gains on securities available for sale	980,000	1,919,000
Fair value of interest rate swap	42,000	(21,000)
Total other comprehensive income	1,022,000	1,898,000
Tax effect of unrealized holding gains on securities available for sale	(343,000)	(672,000)
Tax effect of fair value of interest rate swap	(15,000)	7,000
Total tax effect of other comprehensive income	(358,000)	(665,000)
Other comprehensive income, net of tax effect	664,000	1,233,000
Comprehensive income	$ 8,279,000	$ 9,782,000