Securities (Schedule of Unrealized Losses) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 15,000	$ 11,233
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	(66)	(117)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	199	232
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	(100)	(112)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	15,199	11,465
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total	(166)	(229)
Obligations of U.S. Government agencies and corporations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	5,506	6,489
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	(2)	(11)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	5,506	6,489
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total	(2)	(11)
Obligations of state and political subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	9,170	4,321
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	(34)	(26)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	9,170	4,321
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total	(34)	(26)
Debt securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	14,676	10,810
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	(36)	(37)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	14,676	10,810
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total	(36)	(37)
Equity securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	324	423
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	(30)	(80)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	199	232
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	(100)	(112)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	523	655
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total	$ (130)	$ (192)