Loans And The Allowance For Loan Losses (Recorded Investment In Loans Past Due) (Details) - USD ($) $ in Thousands		Mar. 31, 2017		Dec. 31, 2016	Mar. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		$ 32,624		$ 28,627
Current Balance		912,008		913,102
Total		944,632		941,729	$ 796,170
90+ Days Accruing		72		722
Non-accruing Loans		12,213		11,298
Net deferred loan origination costs		951		783	603
30-59 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		23,530		14,712
60-89 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		635		4,740
90+ Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		8,459		9,175
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		3,820		10,888
Current Balance		188,221		186,483
Total		192,041		197,371	150,813
90+ Days Accruing		72
Non-accruing Loans		2,771		3,106
Commercial And Industrial [Member] | 30-59 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		2,751		6,772
Commercial And Industrial [Member] | 60-89 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		138		2,966
Commercial And Industrial [Member] | 90+ Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		931		1,150
Home Equities [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		928		1,279
Current Balance		65,301		64,955
Total		66,229		66,234
Non-accruing Loans		1,232		1,261
Home Equities [Member] | 30-59 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		128		481
Home Equities [Member] | 60-89 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		207		119
Home Equities [Member] | 90+ Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		593		679
Consumer And Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		57		30
Current Balance		1,287		1,387
Total		1,344		1,417	2,172
Non-accruing Loans		11		17
Consumer And Other Loans [Member] | 30-59 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		50		15
Consumer And Other Loans [Member] | 60-89 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		7		10
Consumer And Other Loans [Member] | 90+ Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due				5
Total Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		751,247		742,941
Total Real Estate Loans [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	[1]	124,973			106,694
Total Real Estate Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		560,045	[1]	555,625	474,898	[1]
Total Real Estate Loans [Member] | Home Equities [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		66,229		66,234	$ 61,593
Mortgages [Member] | Total Real Estate Loans [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		1,954		1,558
Current Balance		120,864		116,984
Total		122,818		118,542
Non-accruing Loans		846		862
Mortgages [Member] | Total Real Estate Loans [Member] | Residential Real Estate [Member] | 30-59 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		1,225		868
Mortgages [Member] | Total Real Estate Loans [Member] | Residential Real Estate [Member] | 60-89 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		70		123
Mortgages [Member] | Total Real Estate Loans [Member] | Residential Real Estate [Member] | 90+ Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		659		567
Mortgages [Member] | Total Real Estate Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		17,559		10,198
Current Balance		446,729		452,187
Total		464,288		462,385
90+ Days Accruing				483
Non-accruing Loans		3,174		1,874
Mortgages [Member] | Total Real Estate Loans [Member] | Commercial Real Estate [Member] | 30-59 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		15,249		6,319
Mortgages [Member] | Total Real Estate Loans [Member] | Commercial Real Estate [Member] | 60-89 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		213		1,522
Mortgages [Member] | Total Real Estate Loans [Member] | Commercial Real Estate [Member] | 90+ Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		2,097		2,357
Construction [Member] | Total Real Estate Loans [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Balance		2,155		2,540
Total		2,155		2,540
Construction [Member] | Total Real Estate Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		8,306		4,674
Current Balance		87,451		88,566
Total		95,757		93,240
90+ Days Accruing				239
Non-accruing Loans		4,179		4,178
Construction [Member] | Total Real Estate Loans [Member] | Commercial Real Estate [Member] | 30-59 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		4,127		257
Construction [Member] | Total Real Estate Loans [Member] | Commercial Real Estate [Member] | 90+ Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		$ 4,179		$ 4,417

[1] Includes construction loans