CONSOLIDATED STATEMENT OF INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
INTEREST INCOME:
Interest and fees on loans	$ 13,915	$ 12,666	$ 41,005	$ 36,988
Interest-bearing deposits with banks	103	94	311	218
Investment securities:
Taxable	1,361	967	3,597	2,683
Nontaxable	378	425	1,109	1,426
Dividends	117	107	371	355
TOTAL INTEREST INCOME	15,874	14,259	46,393	41,670
INTEREST EXPENSE:
Deposits	2,315	1,794	7,027	4,695
Borrowed funds	660	695	2,216	2,034
TOTAL INTEREST EXPENSE	2,975	2,489	9,243	6,729
NET INTEREST INCOME	12,899	11,770	37,150	34,941
Provision for loan losses	400	475	1,150	1,300
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	12,499	11,295	36,000	33,641
NON-INTEREST INCOME:
Revenue from customers	1,742	1,634	5,197	4,819
Gains on loans sold	176	170	339	302
Equity security gains (losses), net	29	(4)	70	9
Available for sale security gains (losses), net	8	(8)	8	(8)
Earnings on bank owned life insurance	158	161	463	467
Other	144	141	427	414
TOTAL NON-INTEREST INCOME	2,177	2,010	6,237	5,758
NON-INTEREST EXPENSES:
Salaries and employee benefits	5,096	4,679	15,129	14,251
Occupancy	530	500	1,639	1,606
Furniture and equipment	165	130	501	394
Professional fees	343	507	1,101	1,273
FDIC insurance (credit)	(20)
FDIC insurance fee		120	196	327
Pennsylvania shares tax	275	250	825	850
Amortization of intangibles	66	74	198	224
Merger and acquisition	275	0	275	0
ORE expenses	92	6	308	92
Other	1,592	1,522	4,801	4,305
TOTAL NON-INTEREST EXPENSES	8,414	7,788	24,973	23,322
Income before provision for income taxes	6,262	5,517	17,264	16,077
Provision for income taxes	1,066	936	2,817	2,558
NET INCOME	$ 5,196	$ 4,581	$ 14,447	$ 13,519
PER COMMON SHARE DATA:
Net Income - Basic (in dollars per share)	$ 1.48	$ 1.30	$ 4.10	$ 3.82
Net Income - Diluted (in dollars per share)	1.48	1.30	4.10	3.81
Cash Dividends Paid (in dollars per share)	$ 0.450	$ 0.436	$ 1.331	$ 1.289
Number of shares used in computation - basic (in shares)	3,515,678	3,537,315	3,522,377	3,541,971
Number of shares used in computation - diluted (in shares)	3,515,678	3,537,476	3,524,657	3,544,132
Service Charges [Member]
NON-INTEREST INCOME:
Revenue from customers	$ 1,225	$ 1,181	$ 3,498	$ 3,455
Trust [Member]
NON-INTEREST INCOME:
Revenue from customers	148	147	589	548
Brokerage and Insurance [Member]
NON-INTEREST INCOME:
Revenue from customers	$ 289	$ 222	$ 843	$ 571