Loans (Troubled Debt Restructurings) (Narrative) (Details) $ in Thousands		3 Months Ended			12 Months Ended
		Mar. 31, 2016 USD ($) loan		Mar. 31, 2015 USD ($) loan	Dec. 31, 2015 USD ($) loan
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Average Recorded Investment		$ 6,008		$ 12,021
Impaired financing receivable, related allowance		$ 718			$ 842
Number of loans modified as a TDR | loan		0		0	0
Troubled Debt Restructuring (TDR) [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Average Recorded Investment		$ 1,100			$ 3,300
Impaired financing receivable, related allowance		78			208
Loans in nonaccrual status		293			293
Troubled Debt Restructuring (TDR) [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Impaired [Line Items]
Impaired financing receivable, related allowance		40			41
Troubled Debt Restructuring (TDR) [Member] | Performing Financing Receivable [Member]
Financing Receivable, Impaired [Line Items]
Impaired financing receivable, related allowance		38			167
Small Business Administration Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Average Recorded Investment	[1]	2,004		$ 1,997
Impaired financing receivable, related allowance		$ 567	[2]		$ 705	[3]

[1] Balances are reduced by the average amount guaranteed by the SBA of $265 thousand and $800 thousand for the three months ended March 31, 2016 and 2015, respectively.

[2] Balances are reduced by amount guaranteed by the SBA of $243 thousand at March 31, 2016.

[3] Balances are reduced by amount guaranteed by the SBA of $288 thousand at December 31, 2015.