Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net income	$ 8,865	$ 10,227
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,996	3,027
Changes in net deferred loan fees, net of amortization	419	56
Provision for loan losses	3,244	1,317
Net change in accrued interest receivable, prepaid expenses and other assets, accrued expenses and other liabilities	1,960	1,129
Recognition of compensation expense related to ESOP shares and share based payment	926	895
Stock option compensation expense	55	83
Tax provision realized from stock options exercised, share based payment and dividends on unallocated ESOP shares	(72)	34
Amortization of intangible assets	386	320
Bargain purchase gain on bank acquisition	(399)	0
Impairment loss on investment of securities	26	60
Origination of loans held for sale	(6,784)	(15,136)
Gain on sale of loans	(142)	(208)
Proceeds from sale of loans	8,602	15,761
Valuation adjustment on other real estate owned	23	483
Gain on other real estate owned, net	(307)	0
(Gain) loss on sale of premises and equipment, net	(596)	2
Net cash provided by operating activities	20,202	18,050
Cash flows from investing activities:
Loans originated, net of principal payments	(46,311)	(8,895)
Maturities of investment securities available for sale	43,272	37,765
Maturities of investment securities held to maturity	1,561	1,424
Purchase of investment securities available for sale	(38,155)	(42,276)
Purchase of investment securities held to maturity	(3,625)	0
Maturities of other interest earning deposits	272	0
Purchase of premises and equipment	(4,300)	(1,464)
Proceeds from sale of other real estate owned	5,590	2,695
Proceeds from sale of premises and equipment	700	0
Proceeds from redemption of FHLB stock	154	49
Net cash received from acquisitions	18,260	0
Net cash used in investing activities	(22,582)	(10,702)
Cash flows from financing activities:
Net increase (decrease) in deposits	40,559	(2,344)
Common stock cash dividends paid	(5,376)	(6,397)
Net increase (decrease) in securities sold under agreement to repurchase	6,634	(202)
Proceeds from exercise of stock options, net of tax effect	166	53
Net excess tax benefit (deficiency) realized from stock options exercised, share based payment and dividends on unallocated ESOP shares	72	(34)
Repurchase of common stock	(8,820)	(5,278)
Net cash provided by (used in) financing activities	33,235	(14,202)
Net increase (decrease) in cash and cash equivalents	30,855	(6,854)
Cash and cash equivalents at beginning of period	104,268	123,173
Cash and cash equivalents at end of period	135,123	116,319
Supplemental disclosures of cash flow information:
Cash paid for interest	2,770	3,608
Cash paid for income taxes	3,074	7,848
Seller-financed sale of other real estate owned	250	0
Loans transferred to other real estate owned	1,740	5,979
Common stock issued in Valley Acquisition	24,195	0
Assets acquired (liabilities assumed) in acquisitions:
Other interest earning deposits	14,869	0
Investment securities available for sale	34,197	0
Investment securities held to maturity	22,908	0
Purchased non-covered loans receivable	168,580	0
Other real estate owned	2,279	0
Premises and equipment	6,772	0
FHLB stock	454	0
Accrued interest receivable	697	0
Prepaid expenses and other assets	4,347	0
Deferred income taxes, net	2,788	0
Core deposit intangible	1,072	0
Deposits	(267,445)	0
Accrued expenses and other liabilities	$ (1,528)	$ 0