Derivatives Two-way client interest rate swaps not designated as either fair value or cash flow hedges (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015 USD ($) position	Dec. 31, 2014 USD ($) position
Derivative [Line Items]
Notional Amount	$ 11,216	$ 11,498
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	52	50
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	$ 52	$ 50
Life (Years)
Pay fixed - receive floating interest rate swap [Member] | Interest Rate Swap One [Member]
Derivative [Line Items]
Number of Positions | position	1	1
Notional Amount	$ 3,882	$ 4,002
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	33	0
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	$ 0	$ 19
Derivative, Fixed Interest Rate	3.90%	3.90%
Spread on Variable Rate	2.00%	2.00%
Life (Years)	12 years 3 months 18 days	12 years 10 months 24 days
Pay fixed - receive floating interest rate swap [Member] | Interest Rate Swap Two [Member]
Derivative [Line Items]
Number of Positions | position	1	1
Notional Amount	$ 1,726	$ 1,747
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	0	0
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	$ 19	$ 31
Derivative, Fixed Interest Rate	4.09%	4.09%
Spread on Variable Rate	1.80%	1.80%
Life (Years)	9 years 3 months 18 days	9 years 10 months 24 days
Reverse Interest Rate Swap [Member] | Interest Rate Swap One [Member]
Derivative [Line Items]
Number of Positions | position	1	1
Notional Amount	$ 3,882	$ 4,002
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	0	19
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	$ 33	$ 0
Derivative, Fixed Interest Rate	3.90%	3.90%
Spread on Variable Rate	2.00%	2.00%
Life (Years)	12 years 3 months 18 days	12 years 10 months 24 days
Reverse Interest Rate Swap [Member] | Interest Rate Swap Two [Member]
Derivative [Line Items]
Number of Positions | position	1	1
Notional Amount	$ 1,726	$ 1,747
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	19	31
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	$ 0	$ 0
Derivative, Fixed Interest Rate	4.09%	4.09%
Spread on Variable Rate	1.80%	1.80%
Life (Years)	9 years 3 months 18 days	9 years 10 months 24 days