Loans (Interest Income On Non-Accrual Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	$ 6,952	$ 3,750	$ 6,952	$ 3,750	$ 4,635
Loans 90 day past due and accruing		498		498	457
Total non-performing loans	6,952	4,248	6,952	4,248	5,092
Interest income that would have been recorded under original terms, non-accrual loans	150	102	370	380
Interest income that would have been recorded under original terms, 90 days past due and accruing			2	5
Interest income that would have been recorded under original terms	150	102	372	385
Interest income recorded during the period, 90 days past due and accruing			2	5
Interest income recorded during the period			2	5
Net impact on interest income, non-accrual loans	150	102	370	380
Net impact on interest income	150	102	370	380
Residential Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	1,759	1,600	1,759	1,600	1,619
Loans 90 day past due and accruing					457
Interest income that would have been recorded under original terms, non-accrual loans	15	10	51	50
Net impact on interest income, non-accrual loans	15	10	51	50
Commercial Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	3,061	1,075	3,061	1,075	1,048
Interest income that would have been recorded under original terms, non-accrual loans	74	21	139	64
Net impact on interest income, non-accrual loans	74	21	139	64
Commercial Term [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	202	191	202	191	188
Interest income that would have been recorded under original terms, non-accrual loans	3	2	9	7
Net impact on interest income, non-accrual loans	3	2	9	7
Commercial Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	1,217	451	1,217	451	1,028
Interest income that would have been recorded under original terms, non-accrual loans	46	56	134	226
Net impact on interest income, non-accrual loans	46	56	134	226
Consumer: Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	492	313	492	313	563
Interest income that would have been recorded under original terms, non-accrual loans	7	7	23	19
Net impact on interest income, non-accrual loans	7	7	23	19
Consumer: Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	221	120	221	120	$ 189
Interest income that would have been recorded under original terms, non-accrual loans	5	6	14	14
Net impact on interest income, non-accrual loans	$ 5	$ 6	$ 14	$ 14