Other Real Estate Owned - Composition and Other Information (Details) - USD ($)	Jun. 30, 2015	Dec. 31, 2014	Dec. 31, 2013
Composition of OREO
Other real estate owned ("OREO"), net	$ 10,531,000	$ 9,779,000	$ 9,617,000
Loans [Member]
Composition of OREO
Other real estate owned ("OREO"), net	356,000	349,000	1,725,000
Loans, Land [Member]
Composition of OREO
Other real estate owned ("OREO"), net	229,000
Loans, Residential Real Estate [Member]
Composition of OREO
Other real estate owned ("OREO"), net	127,000
Tax Lien [Member]
Composition of OREO
Other real estate owned ("OREO"), net	$ 10,175,000	$ 9,430,000	$ 7,892,000