Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 5,019	$ 5,565
Net change in fair value of interest rate swap agreements designated as cash flow hedges:
Unrealized gain on interest rate swaps, net of tax of $45 and $43, respectively	(83)	(81)
Reclassification adjustment for losses recognized in earnings, net of tax of ($31) and ($34), respectively	58	62
Net change in fair value of interest rate swap agreements designated as cash flow hedges	(25)	(19)
Unrealized gains on other-than-temporarily impaired securities available for sale:
Unrealized gains arising during the period, net of tax of $97 and $0, respectively	(181)	0
Unrealized gains on other securities available for sale:
Unrealized gains arising during the period, net of tax of ($1,946) and ($2,650), respectively	3,614	4,920
Reclassification adjustment for realized gains included in net income, net of tax of $0 and $7, respectively	0	(12)
Unrealized losses on other securities available for sale net of reclassification adjustment for realized gains included in net income	3,614	4,908
Other comprehensive income	3,408	4,889
COMPREHENSIVE INCOME	$ 8,427	$ 10,454