Loans - (Additional Information Related to Accruing TDR's) (Details) - Accruing TDR [Member] - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Loans [Line Items]
Recorded investment	$ 5,729	$ 8,436
Average year-to- date recorded investment	5,813	8,594
Unpaid principal balance	5,884	8,485
Unfunded commitments to fund TDRs	2	165
Commercial [Member]
Loans [Line Items]
Recorded investment	2,576	5,874
Average year-to- date recorded investment	2,610	5,951
Unpaid principal balance	2,631	5,918
Unfunded commitments to fund TDRs		163
Commercial Real Estate [Member]
Loans [Line Items]
Recorded investment	743	388
Average year-to- date recorded investment	758	394
Unpaid principal balance	795	389
Residential Real Estate Segment [Member]
Loans [Line Items]
Recorded investment	2,401	2,162
Average year-to- date recorded investment	2,435	2,234
Unpaid principal balance	2,449	2,166
Unfunded commitments to fund TDRs	2	2
Consumer [Member]
Loans [Line Items]
Recorded investment	9	12
Average year-to- date recorded investment	10	15
Unpaid principal balance	$ 9	$ 12