Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Interest Income
Interest and Fees on Loans & Leases	$ 81,558	$ 71,310	$ 64,921
Interest on Deposits with Banks	172	158	79
Interest on Investment Securities:
Taxable	6,311	7,739	8,971
Exempt from Federal Tax	2,034	2,314	2,560
Total Interest Income	90,075	81,521	76,531
Interest Expense
Deposits	2,989	2,486	2,548
Borrowed Funds	7	5	16
Subordinated Debentures	329	322	327
Total Interest Expense	3,325	2,813	2,891
Net Interest Income	86,750	78,708	73,640
Provision for Credit Losses	750	1,175	425
Net Interest Income After Provision for Credit Losses	86,000	77,533	73,215
Non-Interest Income
Service Charges on Deposit Accounts	3,458	3,923	4,350
Net Gain (Loss) on Investment Securities	275	90	(229)
Increase in Cash Surrender Value of Life Insurance	1,908	1,881	1,856
Debit Card and ATM Fees	3,183	3,087	3,069
Net Gain on Deferred Compensation Investments	1,375	2,129	3,366
Other	4,376	3,219	3,525
Total Non-Interest Income	14,575	14,329	15,937
Non-Interest Expense
Salaries and Employee Benefits	39,683	36,446	33,658
Net Gain on Deferred Compensation Investments	1,375	2,129	3,366
Occupancy	2,884	2,690	2,513
Equipment	3,162	2,794	2,783
Marketing	1,254	353	263
FDIC Insurance	1,193	1,048	981
Other	6,708	5,906	7,306
Total Non-Interest Expense	56,259	51,366	50,870
Income Before Income Taxes	44,316	40,496	38,282
Provision for Income Taxes	16,924	15,094	14,221
Net Income	$ 27,392	$ 25,402	$ 24,061
Basic Earnings Per Common Share (in dollars per share)	$ 34.82	$ 32.64	$ 30.93