Fair Value of Financial Instruments (Fair Value, by Balance Sheet Grouping) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Assets
Investment securities - AFS	$ 128,400	$ 119,976
Investment securities - HTM	94,565	93,745
Equity securities carried at fair value through income	4,511	4,428
Non-marketable equity securities in other financial institutions	209	209
FHLB stock	3,874	3,821
Loans receivable	1,318,674	1,298,465
Accrued Interest Receivable	5,331	4,957
Investments in BOLI	36,513	36,295
Liabilities
Savings, NOW and money market accounts	969,328	982,600
Time deposits	470,180	446,683
Long-term debt	20,637	20,568
Short term borrowings	35,040	35,016
TRUPs	11,029	10,924
Subordinated notes	23,067	23,085
Carrying Amount [Member]
Assets
Investment securities - AFS	128,400	119,976
Investment securities - HTM	95,495	96,271
Equity securities carried at fair value through income	4,511	4,428
Non-marketable equity securities in other financial institutions	209	209
FHLB stock	3,874	3,821
Loans receivable	1,353,591	1,337,129
Accrued Interest Receivable	5,331	4,957
Investments in BOLI	36,513	36,295
Liabilities
Savings, NOW and money market accounts	969,328	982,600
Time deposits	469,839	447,029
Long-term debt	20,419	20,436
Short term borrowings	35,000	35,000
TRUPs	12,000	12,000
Subordinated notes	23,000	23,000
Fair Value, Inputs, Level 1 [Member]
Assets
Investment securities - HTM	1,489	999
Fair Value, Inputs, Level 2 [Member]
Assets
Investment securities - AFS	128,400	119,976
Investment securities - HTM	93,076	92,746
Equity securities carried at fair value through income	4,511	4,428
Non-marketable equity securities in other financial institutions	209	209
FHLB stock	3,874	3,821
Accrued Interest Receivable	5,331	4,957
Investments in BOLI	36,513	36,295
Liabilities
Savings, NOW and money market accounts	969,328	982,600
Time deposits	470,180	446,683
Long-term debt	20,637	20,568
Short term borrowings	35,040	35,016
TRUPs	11,029	10,924
Subordinated notes	23,067	23,085
Fair Value, Inputs, Level 3 [Member]
Assets
Loans receivable	$ 1,318,674	$ 1,298,465