Premises and Equipment (Leases) (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2017 USD ($) property	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Property, Plant and Equipment [Line Items]
Lease expense		$ 1,500	$ 1,800	$ 1,700
Number of properties | property		1
Lessee Leasing Arrangements, Operating Leases, Term of Contract		5 years
number of lease extensions		2
Lessee Leasing Arrangements, Operating Leases, Renewal Term		5 years
Capital Lease Obligations		$ 791	858
Operating Leases
2018		1,429
2019		1,394
2020		888
2021		671
2022		484
Thereafter		1,531
Total		6,397
Capital Leases
2018		126
2019		126
2020		126
2021		130
2022		131
Thereafter		425
Total		1,064
Less: amount representing interest	[1]	273
Present value of net minimum lease payments	[2]	$ 791
Capital lease obligation
Property, Plant and Equipment [Line Items]
Year through which capital lease on branch facility will extend		Mar. 31, 2026
Capital lease interest rate		9.75%
Capital lease for a branch facility		$ 855	855
Accumulated depreciation for a branch facility		$ 502	$ 459
Lease Agreements [Member]
Property, Plant and Equipment [Line Items]
Year through which capital lease on branch facility will extend		Dec. 01, 2019
Officer [Member]
Property, Plant and Equipment [Line Items]
number of related parties		2

[1] Amount necessary to reduce net minimum lease payments to present value calculated at the Company's incremental borrowing rate at lease inception.

[2] Reflects the liability reported within short- and long-term borrowings on the consolidated statements of condition. At December 31, 2017 and 2016, the capital lease liability was $791,000 and $858,000, respectively.