Fair Value of Financial Instruments - Assets Measured on Nonrecurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
Assets
Loans held for sale	$ 0	$ 0
Significant Other Observable Inputs Level 2 [Member]
Assets
Loans held for sale	2,720	616
Significant Unobservable Inputs Level 3 [Member]
Assets
Loans held for sale	0	0
Fair Value, Measurements, Nonrecurring [Member]
Assets
Loans held for sale	2,720	616
Impaired loans, net of valuation allowance	1,835	1,705
Other real estate owned	2,113	2,119
Fair Value, Measurements, Nonrecurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
Assets
Loans held for sale	0	0
Impaired loans, net of valuation allowance	0	0
Other real estate owned	0	0
Fair Value, Measurements, Nonrecurring [Member] | Significant Other Observable Inputs Level 2 [Member]
Assets
Loans held for sale	2,720	616
Impaired loans, net of valuation allowance	0	0
Other real estate owned	0	0
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs Level 3 [Member]
Assets
Loans held for sale	0	0
Impaired loans, net of valuation allowance	1,835	1,705
Other real estate owned	$ 2,113	$ 2,119