Investment Securities (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Schedule of Investments [Line Items]
Impairment charges (credit losses) on trust preferred securities	$ 0	$ 0	$ 7,000	$ 0
Gain on sale of investment securities	0	0	458,000	703,000
Sale proceeds from sale of securities			5,700,000	7,946,000
Income tax provision on gross gain on sale of securities			165,000	253,000
Municipal Securities [Member]
Schedule of Investments [Line Items]
Number of securities in investment portfolio	22		22
Investments at market value	12,600		12,600
Securities in unrealized loss positions, number of positions	1		1
Number of securities in the geographical area with the highest concentration of municipal securities	11		11
Market value of securities in the Pennsylvania geographical area with the highest concentration of municipal securities	6,400,000		6,400,000
Number of municipal securities with OTTI impairment	0		0
Collateralized Mortgage Obligations [Member]
Schedule of Investments [Line Items]
Number of securities in investment portfolio	32		32
Investments at market value	151,800		151,800
Securities in unrealized loss positions, number of positions	16		16
Mortgage-backed Securities [Member]
Schedule of Investments [Line Items]
Number of securities in investment portfolio	42		42
Investments at market value	$ 13,400,000		$ 13,400,000
Securities in unrealized loss positions, number of positions	2		2