Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
INTEREST INCOME
Interest and fees on loans and leases	$ 40,156	$ 36,402	$ 32,840
Interest on interest-bearing balances	18	12	44
Interest and dividends on investment securities:
U.S. Treasury and government agencies	2,273	1,346	1,222
State and political subdivision obligations, tax-exempt	1,113	2,066	2,000
Other securities	217	304	382
Interest on federal funds sold	115	82	2
Total Interest Income	43,892	40,212	36,490
INTEREST EXPENSE
Interest on deposits	5,463	4,514	3,889
Interest on short-term borrowings	111	15	47
Interest on long-term and subordinated debt	730	838	671
Total Interest Expense	6,304	5,367	4,607
Net Interest Income	37,588	34,845	31,883
PROVISION FOR LOAN AND LEASE LOSSES	325	1,870	1,065
Net Interest Income After Provision for Loan and Lease Losses	37,263	32,975	30,818
NONINTEREST INCOME
Income from fiduciary activities	845	481	466
Service charges on deposits	721	684	690
Net gain on sales of investment securities	42	1,046	325
Earnings from cash surrender value of life insurance	262	264	269
Mortgage banking income	872	922	456
ATM debit card interchange income	937	844	741
Merchant services income	335	317	235
Net gain on sales of SBA loans	800	470	252
Other income	879	896	679
Total Noninterest Income	5,693	5,924	4,113
NONINTEREST EXPENSE
Salaries and employee benefits	16,929	15,564	14,043
Occupancy expense, net	2,512	2,064	1,947
Equipment expense	1,536	1,689	1,477
Pennsylvania Bank Shares Tax expense	451	648	408
FDIC Assessment	792	688	613
Legal and professional fees	802	711	588
Marketing and advertising expense	516	500	533
Software licensing	1,458	1,380	1,472
Telephone expense	497	548	569
Loss on sale or write-down of foreclosed assets	88	217	111
Intangible amortization	104	126	114
Merger and acquisition expense	619		762
Other expenses	5,063	4,683	4,122
Total Noninterest Expense	31,367	28,818	26,759
INCOME BEFORE PROVISION FOR INCOME TAXES	11,589	10,081	8,172
Provision for income taxes	4,500	2,277	1,644
NET INCOME	7,089	7,804	6,528
NET INCOME AVAILABLE TO COMMON SHAREHOLDERS	$ 7,089	$ 7,804	$ 6,038
PER COMMON SHARE DATA:
Basic and Diluted Earnings Per Common Share	$ 1.67	$ 1.85	$ 1.47
Cash Dividends Declared	$ 0.77	$ 0.68	$ 0.44
Series B Preferred Stock [Member]
NONINTEREST EXPENSE
Preferred stock dividends and redemption premium			$ 473
Preferred stock dividends			373
Series C Preferred Stock [Member]
NONINTEREST EXPENSE
Preferred stock dividends			$ 17