Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash Flows from Operating Activities:
Net Income	$ 27,521	$ 21,255
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Provision for Loan Losses	1,961	1,580
Depreciation and Amortization	3,576	4,247
Net Gains on the Sale of Securities Available-for-Sale	0	(10)
Net Gain on Equity Securities	(355)	0
Loans Originated and Held-for-Sale	(3,378)	(14,890)
Proceeds from the Sale of Loans Held-for-Sale	3,620	14,481
Net Gain on the Sale of Loans	(115)	(431)
Net Loss on the Sale of Premises and Equipment, Other Real Estate Owned and Repossessed Assets	155	197
Contributions to Retirement Benefit Plans	(524)	(640)
Deferred Income Tax Benefit	(389)	(20)
Shares Issued Under the Directors’ Stock Plan	103	126
Stock-Based Compensation Expense	267	261
Tax Benefit from Exercise of Stock Options	205	112
Net Increase in Other Assets	(1,030)	(1,689)
Net Increase in Other Liabilities	1,980	1,819
Net Cash Provided By Operating Activities	33,597	26,398
Cash Flows from Investing Activities:
Proceeds from the Sale of Securities Available-for-Sale	0	10,015
Proceeds from the Maturities and Calls of Securities Available-for-Sale	36,663	43,617
Purchases of Securities Available-for-Sale	(84,746)	(22,503)
Proceeds from the Maturities and Calls of Securities Held-to-Maturity	49,721	39,062
Purchases of Securities Held-to-Maturity	(4,506)	(36,018)
Net Increase in Loans	(176,607)	(156,643)
Proceeds from the Sales of Premises and Equipment, Other Real Estate Owned and Repossessed Assets	1,078	830
Purchase of Premises and Equipment	(2,371)	(1,335)
Proceeds from the Sale of a Subsidiary, Net	75	72
Net (Increase) Decrease in Other Investments	(917)	4,208
Net Cash Used By Investing Activities	(181,610)	(118,695)
Cash Flows from Financing Activities:
Net Increase in Deposits	162,739	190,570
Net Increase (Decrease) in Short-Term Federal Home Loan Bank Borrowings	26,000	(90,000)
Net Increase (Decrease) in Short-Term Borrowings	(2,463)	25,583
Repayments of Federal Home Loan Bank Term Advances	(10,000)	0
Purchase of Treasury Stock	(1,823)	(2,767)
Stock Options Exercised, Net	1,977	734
Shares Issued Under the Employee Stock Purchase Plan	368	351
Shares Issued for Dividend Reinvestment Plans	1,302	1,256
Cash Dividends Paid	(10,630)	(10,119)
Net Cash Provided By Financing Activities	167,470	115,608
Net Increase in Cash and Cash Equivalents	19,457	23,311
Cash and Cash Equivalents at Beginning of Period	72,838	57,355
Cash and Cash Equivalents at End of Period	92,295	80,666
Supplemental Disclosures to Statements of Cash Flow Information:
Interest on Deposits and Borrowings	7,946	5,168
Income Taxes	7,493	8,404
Non-cash Investing and Financing Activity:
Transfer of Loans to Other Real Estate Owned and Repossessed Assets	$ 606	$ 1,055