Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Net cash provided by operating activities:	$ 12,738	$ 5,705
Investing activities:
Proceeds from maturities of securities available for sale	3,619	3,497
Purchases of securities available for sale	(8,019)	(8,040)
Proceeds from maturities of securities held to maturity	360	355
Purchases of securities held to maturity	(285)	(165)
Redemptions of Federal Home Loan Bank stock		1,200
Net change in loans	94	(8,337)
Proceeds from sale of other real estate owned	260	62
Purchases of premises and equipment	(317)	(652)
Net cash provided by (used in) investing activities	(4,288)	(12,080)
Financing activities:
Change in deposits	77,578us-gaap_IncreaseDecreaseInDeposits	73,083us-gaap_IncreaseDecreaseInDeposits
Cash dividends	(865)us-gaap_PaymentsOfDividends	(861)us-gaap_PaymentsOfDividends
Proceeds from Federal Home Loan Bank borrowings		1,653
Repayment of Federal Home Loan Bank borrowings	(324)	(240)
Net cash provided by financing activities	76,389	73,635
Change in cash and cash equivalents	84,839	67,260
Cash and cash equivalents at beginning of period	30,977	28,344
Cash and cash equivalents at end of period	115,816	95,604
Supplemental disclosure:
Cash paid for interest	665us-gaap_InterestPaid	768us-gaap_InterestPaid
Transfers from loans to other real estate owned	221us-gaap_TransferOfOtherRealEstate	142us-gaap_TransferOfOtherRealEstate
Other real estate owned sales financed by the Bank		$ 40

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