Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME	$ 5,617	$ 2,951	$ 10,783	$ 7,248
Net change in fair value of interest rate swap agreements designated as cash flow hedges:
Unrealized gain (loss) on interest rate swaps, net of tax of $37 and ($95) for the three months ended June 30, 2014 and 2013, and $58 and ($101) for the six months ended June 30, 2014 and 2013	(68)	177	(107)	188
Reclassification adjustment for losses recognized in earnings, net of tax of ($33) and ($37) for the three months ended June 30, 2014 and 2013, and ($67) and ($71) for the six months ended June 30, 2014 and 2013	61	68	124	131
Net change in fair value of interest rate swap agreements designated as cash flow hedges	(7)	245	17	319
Unrealized gains on other-than-temporarily securities available for sale:
Unrealized gains arising during the period, net of tax of $0 and ($25) for the three months ended June 30, 2014 and 2013, and ($48) and ($11) for the six months ended June 30, 2014 and 2013	0	47	89	20
Unrealized gains (losses) on other securities available for sale:
Unrealized gains (losses) arising during the period, net of tax of $(1,726) and $8,762 for the three months ended June 30, 2014 and 2013, and $9,627 and $(4,032) and $9,627 for the six months ended June 30, 2014 and 2013	3,205	(16,273)	7,488	(17,878)
Reclassification adjustment for realized gains included in net income, net of tax of $48 and $88 for the three months ended June 30, 2014 and 2013, and $71 and $115 for the six months ended June 30, 2014 and 2013	(90)	(164)	(133)	(213)
Unrealized losses on other securities available for sale net of reclassification adjustment for realized gains included in net income	3,115	(16,437)	7,355	(18,091)
Other comprehensive income (loss)	3,108	(16,145)	7,461	(17,752)
COMPREHENSIVE INCOME (LOSS)	$ 8,725	$ (13,194)	$ 18,244	$ (10,504)