Consolidated Statements Of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest income
Loans, including fees	$ 36,274	$ 32,992	$ 30,279
Interest and dividends on investments:
Taxable interest	2,062	2,271	2,415
Tax exempt interest	1,122	1,412	1,607
Dividend income	26	17	67
Deposits and obligations of other banks	401	287	247
Total interest income	39,885	36,979	34,615
Interest expense
Deposits	2,475	2,212	2,367
Short-term borrowings	16	33	4
Total interest expense	2,491	2,245	2,371
Net interest income	37,394	34,734	32,244
Provision for loan losses	670	3,775	1,285
Net interest income after provision for loan losses	36,724	30,959	30,959
Noninterest income
Investment and trust services fees	5,370	4,969	5,036
Loan service charges	831	714	1,002
Deposit service charges and fees	2,399	2,468	2,318
Other service charges and fees	1,327	1,257	1,239
Debit card income	1,543	1,469	1,368
Increase in cash surrender value of life insurance	521	531	551
Net (loss) gain on sale of other real estate owned	(26)	(31)	32
OTTI losses on debt securities		(40)	(20)
Gain on conversion of investment security			728
Securities gains, net	3	22	8
Other	221	246	390
Total noninterest income	12,189	11,605	12,652
Noninterest Expense
Salaries and employee benefits	18,871	18,276	17,186
Occupancy, furniture and equipment, net	3,152	3,120	3,164
Advertising	1,197	1,155	1,105
Legal and professional	1,813	1,508	1,093
Data processing	2,229	2,093	2,051
Pennsylvania bank shares tax	971	902	815
Intangible amortization			181
FDIC Insurance	372	580	663
ATM/debit card processing	959	855	830
Foreclosed real estate	151	1,333	462
Telecommunications	418	429	555
Legal reserve	10,000
Other	3,039	2,924	3,031
Total noninterest expense	43,172	33,175	31,136
Income before federal income taxes	5,741	9,389	12,475
Federal income tax expense	3,565	1,302	2,271
Net income	$ 2,176	$ 8,087	$ 10,204
Per share
Basic earnings per share	$ 0.50	$ 1.88	$ 2.40
Diluted earnings per share	0.50	1.88	2.40
Cash dividends declared	$ 0.93	$ 0.82	$ 0.74