Investments (Narrative) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2015 USD ($) security item $ / shares	Dec. 31, 2014 USD ($) security	Dec. 31, 2013 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Percent of shareholders equity benchmark for investments in a single issuer	10.00%
Restricted stock	$ 782	$ 438
Impairment write-down on securities recognized in earnings	$ 20	$ 20	$ 25
Number of temporarily impaired securities \| security	79	70
Number of investments in a single issuer exceeding benchmark \| item	0
Securities pledged as collateral	$ 79,600	$ 91,600
Gain on conversion of investment security	728
Gain on sale of securities	736	280	33
Available-for-sale Securities	159,473	171,751
Proceeds from Sale and Maturity of Available-for-sale Securities	1,381	5,421	5,188
Gross Unrealized Losses	1,310	1,393
Cumulative OTTI Charges	555	535	515
Fair value of temporarily impaired securities	47,345	45,488
Franklin Financial Service Corporation [Member]
Schedule of Available-for-sale Securities [Line Items]
Proceeds from Sale and Maturity of Available-for-sale Securities		$ 568	$ 312
Federal Home Loan Bank of Pittsburgh [Member]
Schedule of Available-for-sale Securities [Line Items]
Restricted stock	$ 752
Restricted stock per share \| $ / shares	$ 100
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of temporarily impaired securities \| security	15	23
Available-for-sale Securities	$ 69,188	$ 68,366
Gross Unrealized Losses	218	292
Fair value of temporarily impaired securities	$ 10,591	15,092
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of investments \| security	1
Available-for-sale Securities	$ 233	$ 1,053
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Change in unrealized losses	$ 134
Number of temporarily impaired securities \| security	7	7
Available-for-sale Securities	$ 5,289	$ 5,137
Gross Unrealized Gain (Loss)	(669)
Gross Unrealized Losses	669	803
Fair value of temporarily impaired securities	5,289	$ 5,137
Private-Label Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Impairment write-down on securities recognized in earnings	$ 20
Number of temporarily impaired securities \| security	1	1
Available-for-sale Securities	$ 1,372	$ 1,695
Gross Unrealized Gain (Loss)	37
Gross Unrealized Losses	2	15
Cumulative OTTI Charges	555
Fair value of temporarily impaired securities	246	$ 540
Private-Label Mortgage-Backed Securities [Member] \| One Security [Member]
Schedule of Available-for-sale Securities [Line Items]
Change in unrealized losses	$ 2
Number of temporarily impaired securities \| security	1
Agency Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of temporarily impaired securities \| security	42	23
Available-for-sale Securities	$ 69,519	$ 79,494
Gross Unrealized Losses	386	217
Fair value of temporarily impaired securities	$ 26,371	$ 17,503

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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