Derivatives Derivatives designated as cash flow hedges (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013 position	Dec. 31, 2010
Derivative [Line Items]
Notional Amount	$ 11,498,000	$ 8,470,000
Life (Years)
Hedging Instrument [Member]
Derivative [Line Items]
Notional Amount			5,200,000
Pay Rate			2.59%
Interest Rate Swap One [Member] | Hedging Instrument [Member]
Derivative [Line Items]
Number of positions	1	1
Notional Amount	5,155,000	5,155,000
Asset	0	0
Liability	213,000	72,000
Receive Rate	0.23%	0.23%
Pay Rate	2.59%	2.59%
Life (Years)	5 years 9 months 18 days	6 years 9 months 18 days
Interest Rate Swap Two [Member] | Hedging Instrument [Member]
Derivative [Line Items]
Number of positions	1	1
Notional Amount	10,000,000	10,000,000
Asset	0	102,000
Liability	$ 74,000	$ 0
Receive Rate	0.155%	0.166%
Pay Rate	1.43%	1.43%
Life (Years)	4 years 0 months 0 days	5 years 0 months 0 days