Consolidated Statements of Comprehensive Income (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Net income $ 17,331,000 $ 17,033,000 $ 12,535,000
Other comprehensive income (loss):      
Unrealized holding gains (losses) on securities available for sale 8,596,000 (11,960,000) (2,184,000)
Fair value of interest rate swap 11,000 849,000 (1,113,000)
8,607,000 (11,111,000) (3,297,000)
Tax effect of unrealized holding gains (losses) on securities available for sale (3,014,000) 4,186,000 1,229,000
Tax effect of fair value of interest rate swap (4,000) (298,000) 390,000
(3,018,000) 3,888,000 1,619,000
Other comprehensive income (loss), net of tax effect 5,589,000 (7,223,000) (1,678,000)
Comprehensive income $ 22,920,000 $ 9,810,000 $ 10,857,000