Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash Flows from Operating Activities:
Net Income	$ 18,261	$ 13,839
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Provision for Loan Losses	1,375	780
Depreciation and Amortization	2,408	2,988
Net Gain on Equity Securities	(241)	0
Loans Originated and Held-for-Sale	(2,354)	(7,646)
Proceeds from the Sale of Loans Held-for-Sale	2,198	8,118
Net Gain on the Sale of Loans	(61)	(250)
Net Loss on the Sale of Premises and Equipment, Other Real Estate Owned and Repossessed Assets	117	122
Contributions to Retirement Benefit Plans	(352)	(459)
Deferred Income Tax Benefit	(261)	(94)
Shares Issued Under the Directors’ Stock Plan	103	127
Stock-Based Compensation Expense	178	172
Tax Benefit from Exercise of Stock Options	160	112
Net (Increase) Decrease in Other Assets	186	(559)
Net Increase (Decrease) in Other Liabilities	(673)	1,378
Net Cash Provided By Operating Activities	21,044	18,628
Cash Flows from Investing Activities:
Proceeds from the Maturities and Calls of Securities Available-for-Sale	25,035	31,867
Purchases of Securities Available-for-Sale	(56,598)	(12,324)
Proceeds from the Maturities and Calls of Securities Held-to-Maturity	39,616	30,262
Purchases of Securities Held-to-Maturity	(2,105)	(33,435)
Net Increase in Loans	(107,598)	(126,524)
Proceeds from the Sales of Premises and Equipment, Other Real Estate Owned and Repossessed Assets	644	539
Purchase of Premises and Equipment	(1,395)	(867)
Proceeds from the Sale of a Subsidiary, Net	49	23
Net Increase in Other Investments	(1,140)	(123)
Net Cash Used By Investing Activities	(103,492)	(110,582)
Cash Flows from Financing Activities:
Net Increase in Deposits	59,665	103,492
Net Increase (Decrease) in Short-Term Federal Home Loan Bank Borrowings	31,000	(1,000)
Net Increase (Decrease) in Short-Term Borrowings	(4,718)	5,056
Repayments of Federal Home Loan Bank Term Advances	(10,000)	0
Purchase of Treasury Stock	(1,414)	(1,916)
Stock Options Exercised, Net	1,692	701
Shares Issued Under the Employee Stock Purchase Plan	252	242
Shares Issued for Dividend Reinvestment Plans	856	845
Cash Dividends Paid	(6,982)	(6,744)
Net Cash Provided By Financing Activities	70,351	100,676
Net (Decrease) Increase in Cash and Cash Equivalents	(12,097)	8,722
Cash and Cash Equivalents at Beginning of Period		57,355
Cash and Cash Equivalents at End of Period	60,741	66,077
Supplemental Disclosures to Statements of Cash Flow Information:
Interest on Deposits and Borrowings	4,530	3,225
Income Taxes	5,294	5,629
Non-cash Investing and Financing Activity:
Transfer of Loans to Other Real Estate Owned and Repossessed Assets	$ 402	$ 588