Investment Securities - Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Investment Securities Available-for-Sale:
Less than 12 Months, Fair Value	$ 22,313	$ 23,792
Less than 12 Months, Unrealized Losses	116	123
12 Months or More, Fair Value	41,374	102,601
12 Months or More, Unrealized Losses	364	1,883
Investment Securities Held-to-Maturity:
Less than 12 Months, Fair Value	408	8,152
Less than 12 Months, Unrealized Losses	2	540
12 Months or More, Fair Value	4,243	4,200
12 Months or More, Unrealized Losses	112	155
U.S. Treasury notes [Member]
Investment Securities Available-for-Sale:
Less than 12 Months, Fair Value	0	9,141
Less than 12 Months, Unrealized Losses	0	7
12 Months or More, Fair Value	4,903	8,774
12 Months or More, Unrealized Losses	4	129
U.S. Agency notes [Member]
Investment Securities Available-for-Sale:
Less than 12 Months, Fair Value	4,992	0
Less than 12 Months, Unrealized Losses	0	0
12 Months or More, Fair Value	22,311	65,971
12 Months or More, Unrealized Losses	128	1,212
U.S. Agency mortgage-backed securities [Member]
Investment Securities Available-for-Sale:
Less than 12 Months, Fair Value	3,934	3,795
Less than 12 Months, Unrealized Losses	36	2
12 Months or More, Fair Value	4,757	11,456
12 Months or More, Unrealized Losses	86	217
Non-taxable Municipal securities [Member]
Investment Securities Available-for-Sale:
Less than 12 Months, Fair Value	9,194	7,211
Less than 12 Months, Unrealized Losses	42	58
12 Months or More, Fair Value	8,096	11,419
12 Months or More, Unrealized Losses	69	246
Investment Securities Held-to-Maturity:
Less than 12 Months, Fair Value	10	8,152
Less than 12 Months, Unrealized Losses	0	540
12 Months or More, Fair Value	4,243	4,200
12 Months or More, Unrealized Losses	112	155
Taxable Municipal securities [Member]
Investment Securities Available-for-Sale:
Less than 12 Months, Fair Value	2,671	3,117
Less than 12 Months, Unrealized Losses	5	15
12 Months or More, Fair Value	887	3,668
12 Months or More, Unrealized Losses	13	60
Investment Securities Held-to-Maturity:
Less than 12 Months, Fair Value	398	0
Less than 12 Months, Unrealized Losses	2	0
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Losses	0	0
Mutual funds [Member]
Investment Securities Available-for-Sale:
Less than 12 Months, Fair Value	1,209	281
Less than 12 Months, Unrealized Losses	4	12
12 Months or More, Fair Value	276	1,190
12 Months or More, Unrealized Losses	25	10
Trust preferred securities [Member]
Investment Securities Available-for-Sale:
Less than 12 Months, Fair Value	49	50
Less than 12 Months, Unrealized Losses	0	0
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Losses	0	0
Equity securities [Member]
Investment Securities Available-for-Sale:
Less than 12 Months, Fair Value	264	197
Less than 12 Months, Unrealized Losses	29	29
12 Months or More, Fair Value	144	123
12 Months or More, Unrealized Losses	$ 39	$ 9