Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash Flows from Operating Activities:
Net Income	$ 5,288	$ 5,281
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Provision for Loan Losses	280	220
Depreciation and Amortization	2,043	1,409
Allocation of ESOP Stock	188	233
Gains on the Sale of Securities Available-for-Sale	(502)	(542)
Loans Originated and Held-for-Sale	(10,469)	(12,838)
Proceeds from the Sale of Loans Held-for-Sale	10,630	21,867
Net Gains on the Sale of Loans	(357)	(51)
Net (Gains) Loss on the Sale of Premises and Equipment, Other Real Estate Owned and Repossessed Assets	30	0
Contributions to Pension Plans	(80)	(98)
Deferred Income Tax Expense	(288)	(40)
Stock-Based Compensation Expense	99	82
Net (Increase) Decrease in Other Assets	1,064	146
Net Increase Increase in Other Liabilities	659	1,860
Net Cash Provided By (Used In) Operating Activities	8,585	17,529
Cash Flows from Investing Activities:
Proceeds from the Sale of Securities Available-for-Sale	10,851	10,503
Proceeds from the Maturities and Calls of Securities Available-for-Sale	77,782	48,674
Purchases of Securities Available-for-Sale	(288)	(85,355)
Proceeds from the Maturities and Calls of Securities Held-to-Maturity	8,987	12,648
Purchases of Securities Held-to-Maturity	(59,043)	0
Net (Increase) Decrease in Loans	(6,355)	486
Proceeds from the Sales of Premises and Equipment, Other Real Estate Owned and Repossessed Assets	230	135
Purchases of Premises and Equipment	(1,025)	(801)
Cash Paid for Subsidiaries	(75)	(3,561)
Net Decrease in Other Investments	2,340	900
Purchase of Bank Owned Life Insurance	0	(12,833)
Net Cash Used In Investing Activities	33,404	(29,204)
Cash Flows from Financing Activities:
Net Increase in Deposits	116,832	74,115
Net (Decrease) Increase in Short-Term Borrowings	(51,641)	6,195
Repayments of Federal Home Loan Bank Term Advances	(10,000)	(20,000)
Purchases of Treasury Stock	(2,237)	(752)
Stock Options Exercised	1,149	314
Shares Issued Under the Employee Stock Purchase Plan	107	115
Tax Benefit from Exercise of Stock Options	53	0
Treasury Shares Issued for Dividend Reinvestment Plans	464	450
Cash Dividends Paid	(2,944)	(2,838)
Net Cash Provided By (Used In) Financing Activities	51,783	57,599
Net (Decrease) Increase in Cash and Cash Equivalents	93,772	45,924
Cash and Cash Equivalents at Beginning of Period	43,736	31,079
Cash and Cash Equivalents at End of Period	137,508	77,003
Supplemental Disclosures to Statements of Cash Flow Information:
Interest on Deposits and Borrowings	3,704	5,534
Income Taxes	191	321
Non-cash Investing and Financing Activities:
Transfer of Loans to Other Real Estate Owned and Repossessed Assets	232	137
Acquisition of Subsidiary	91	3,060
Fair Value of Assets from Acquisition of Subsidiary	0	7,688
Fair Value of Liabilities from Acquisition of Subsidiary	$ 0	$ 1,067