CONSOLIDATED STATEMENT OF INCOME - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
INTEREST AND DIVIDEND INCOME:      
Loans, including fees $ 42,056 $ 39,134 $ 36,495
Investment securities:      
Taxable 2,424 3,426 5,111
Tax-exempt 1,498 2,795 3,453
Dividend and other interest income 835 769 547
TOTAL INTEREST AND DIVIDEND INCOME 46,813 46,124 45,606
INTEREST EXPENSE:      
Deposits 3,547 3,129 2,995
Short-term borrowings 46 116 54
Long-term borrowings 1,974 1,974 1,913
TOTAL INTEREST EXPENSE 5,567 5,219 4,962
NET INTEREST INCOME 41,246 40,905 40,644
PROVISION FOR LOAN LOSSES 1,196 2,300 2,850
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES 40,050 38,605 37,794
NON-INTEREST INCOME:      
Service charges 2,249 2,383 2,419
Securities gains, available for sale 1,611 2,592 3,515
Securities gains (losses), trading 58 (22) 0
Bank-owned life insurance 684 720 923
Gain on sale of loans 2,102 1,743 1,803
Insurance commissions 795 781 1,146
Brokerage commissions 1,098 1,064 1,077
Other 3,516 3,504 3,625
TOTAL NON-INTEREST INCOME 12,113 12,765 14,508
NON-INTEREST EXPENSE:      
Salaries and employee benefits 17,813 17,023 17,273
Occupancy 2,223 2,248 2,301
Furniture and equipment 2,793 2,622 2,536
Pennsylvania shares tax 873 954 907
Amortization of investment in limited partnerships 312 661 661
Federal Deposit Insurance Corporation deposit insurance 767 867 746
Marketing 740 612 532
Intangible amortization 366 311 345
Other 9,204 8,438 8,589
TOTAL NON-INTEREST EXPENSE 35,091 33,736 33,890
INCOME BEFORE INCOME TAX PROVISION 17,072 17,634 18,412
INCOME TAX PROVISION 4,597 3,736 3,804
NET INCOME $ 12,475 $ 13,898 $ 14,608
EARNINGS PER SHARE - BASIC AND DILUTED (in dollars per share) $ 2.64 $ 2.91 $ 3.03
WEIGHTED AVERAGE SHARES OUTSTANDING - BASIC AND DILUTED (in shares) 4,735,457 4,772,239 4,816,149
DIVIDENDS PER SHARE (in dollars per share) $ 1.88 $ 1.88 $ 1.88