Related Party Transactions (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Loans Outstanding to Directors and Executive Officers [Roll Forward]
Number of directors principals in law firms	2
Management
Related Party Transaction [Line Items]
Noninterest Expense Directors Fees	$ 263,000	$ 243,000	$ 226,000
Loans Outstanding to Directors and Executive Officers [Roll Forward]
Balance, January 1	243,000
Reclassified	(88,000)
New	66,000
Repayments	(159,000)
Balance, December 31	62,000	243,000
Director
Loans Outstanding to Directors and Executive Officers [Roll Forward]
Incurred legal fees	0	486	3,000
PCBB
Loans Outstanding to Directors and Executive Officers [Roll Forward]
Fees for various management analytical reporting functions for PCBB	$ 190,000	$ 199,000	$ 144,000