Loans - Composition Of Net Loans Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	$ 664,190	$ 544,090
Unearned net loan origination fees	(932)	(667)
Allowance for loan losses	(6,331)	(5,590)
Net loans receivable	656,927	537,833
Mortgage loans serviced for the benefit of others	438	454
Commercial And Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	34,152	20,023
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	21,912	13,348
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	465,600	382,262
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	141,466	127,204
Consumer And Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	$ 1,060	$ 1,253