3. Fair Value Measurements (Assets And Liabilities Recorded At Fair Value On A Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Available for sale securities, fair value	$ 288,780	$ 281,539
Interest rate swap	803
U S Government Corporations And Agencies Securities [Member]
Available for sale securities, fair value	29,657	29,020
Government Sponsored Agencies [Member]
Available for sale securities, fair value	155,716	136,570
Nongovernment Sponsored Agencies [Member]
Available for sale securities, fair value	11,819	15,745
U S States And Political Subdivisions General Obligations [Member]
Available for sale securities, fair value	15,870	12,169
Corporate Debt Securities [Member]
Available for sale securities, fair value	3,966	1,950
Equity Securities [Member]
Available for sale securities, fair value	77	77
Tax Exempt Debt Securities Us States And Political Subdivisions [Member]
Available for sale securities, fair value	71,675	83,270
Tax Exempt Mortgage Backed Securities [Member]
Available for sale securities, fair value		2,738
Fair Value Inputs Level1 [Member]
Available for sale securities, fair value	0	0
Interest rate swap	0
Fair Value Inputs Level1 [Member] | U S Government Corporations And Agencies Securities [Member]
Available for sale securities, fair value	0	0
Fair Value Inputs Level1 [Member] | Government Sponsored Agencies [Member]
Available for sale securities, fair value	0	0
Fair Value Inputs Level1 [Member] | Nongovernment Sponsored Agencies [Member]
Available for sale securities, fair value	0	0
Fair Value Inputs Level1 [Member] | U S States And Political Subdivisions General Obligations [Member]
Available for sale securities, fair value	0	0
Fair Value Inputs Level1 [Member] | Corporate Debt Securities [Member]
Available for sale securities, fair value	0	0
Fair Value Inputs Level1 [Member] | Equity Securities [Member]
Available for sale securities, fair value	0	0
Fair Value Inputs Level1 [Member] | Tax Exempt Debt Securities Us States And Political Subdivisions [Member]
Available for sale securities, fair value	0	0
Fair Value Inputs Level1 [Member] | Tax Exempt Mortgage Backed Securities [Member]
Available for sale securities, fair value		0
Fair Value Inputs Level2 [Member]
Available for sale securities, fair value	288,780	281,539
Interest rate swap	803
Fair Value Inputs Level2 [Member] | U S Government Corporations And Agencies Securities [Member]
Available for sale securities, fair value	29,657	29,020
Fair Value Inputs Level2 [Member] | Government Sponsored Agencies [Member]
Available for sale securities, fair value	155,716	136,570
Fair Value Inputs Level2 [Member] | Nongovernment Sponsored Agencies [Member]
Available for sale securities, fair value	11,819	15,745
Fair Value Inputs Level2 [Member] | U S States And Political Subdivisions General Obligations [Member]
Available for sale securities, fair value	15,870	12,169
Fair Value Inputs Level2 [Member] | Corporate Debt Securities [Member]
Available for sale securities, fair value	3,966	1,950
Fair Value Inputs Level2 [Member] | Equity Securities [Member]
Available for sale securities, fair value	77	77
Fair Value Inputs Level2 [Member] | Tax Exempt Debt Securities Us States And Political Subdivisions [Member]
Available for sale securities, fair value	71,675	83,270
Fair Value Inputs Level2 [Member] | Tax Exempt Mortgage Backed Securities [Member]
Available for sale securities, fair value		2,738
Fair Value Inputs Level3 [Member]
Available for sale securities, fair value	0	0
Interest rate swap	0
Fair Value Inputs Level3 [Member] | U S Government Corporations And Agencies Securities [Member]
Available for sale securities, fair value	0	0
Fair Value Inputs Level3 [Member] | Government Sponsored Agencies [Member]
Available for sale securities, fair value	0	0
Fair Value Inputs Level3 [Member] | Nongovernment Sponsored Agencies [Member]
Available for sale securities, fair value	0	0
Fair Value Inputs Level3 [Member] | U S States And Political Subdivisions General Obligations [Member]
Available for sale securities, fair value	0	0
Fair Value Inputs Level3 [Member] | Corporate Debt Securities [Member]
Available for sale securities, fair value	0	0
Fair Value Inputs Level3 [Member] | Equity Securities [Member]
Available for sale securities, fair value	0	0
Fair Value Inputs Level3 [Member] | Tax Exempt Debt Securities Us States And Political Subdivisions [Member]
Available for sale securities, fair value	0	0
Fair Value Inputs Level3 [Member] | Tax Exempt Mortgage Backed Securities [Member]
Available for sale securities, fair value		$ 0