Investment Securities (Narrative) (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2016 USD ($) security	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($) security
Schedule of Investments [Line Items]
Available-for-sale Securities Pledged as Collateral	$ 155,153,000		$ 130,298,000
Available-for-sale Securities, Gross Realized Gains	$ 0	$ 177,000
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security	58		47
Available-for-sale, Securities in Unrealized Loss Positions, Depreciation Percentage			1.19%
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	$ 192,000		$ 194,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ 470,000		$ 403,000
55 Debt and 4 Equity Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Depreciation Percentage	0.97%
Debt Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security	55		44
Equity Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security	3		3
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	$ 76,000		$ 33,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ 91,000		$ 43,000
State and municipal [Member]
Schedule of Investments [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security	23		12
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	$ 46,000		$ 45,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ 156,000		$ 77,000
Mortgage-backed U.S. Government Agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security	26		24
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	$ 60,000		$ 104,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ 185,000		$ 228,000