Loans - Impaired Loans Summary (Details 7) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Impaired loans summary
Nonaccrual loans	$ 4,402		$ 4,402		$ 2,127
Accruing loans past due 90 days or more					16
Restructured loans - nonaccrual	1,712		1,712		2,717
Restructured loans - accruing	681		681		2,257
Total nonperforming loans	6,795		6,795		7,117
Impaired loans, other infomation
Impaired loans, allowance	680		680		468
Impaired loans, average recorded investment	7,531	$ 12,706	8,331	$ 13,564
Total nonaccrual loans	6,100		6,100		$ 4,800
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	$ 66	$ 133	$ 230	$ 341