Loans (Details 5) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended		3 Months Ended	6 Months Ended				3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended										6 Months Ended						3 Months Ended	6 Months Ended			6 Months Ended					3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended			6 Months Ended				3 Months Ended	6 Months Ended
	Jun. 30, 2011 contract	Jun. 30, 2011 contract	Jun. 30, 2012 Accruing interest contract	Jun. 30, 2012 Accruing interest contract	Dec. 31, 2011 Accruing interest contract	Jun. 30, 2012 Nonaccrual contract	Jun. 30, 2012 Nonaccrual contract	Dec. 31, 2011 Nonaccrual contract	Jun. 30, 2012 Commercial Nonaccrual contract	Dec. 31, 2011 Commercial Nonaccrual contract	Jun. 30, 2012 Real estate - commercial Nonaccrual Interest contract	Jun. 30, 2012 Real estate - commercial Nonaccrual Interest contract	Jun. 30, 2012 Real estate - commercial Nonaccrual Bifurcate contract	Jun. 30, 2012 Real estate - commercial Nonaccrual Bifurcate contract	Dec. 31, 2011 Real estate - commercial Owner occupied general purpose Nonaccrual contract	Jun. 30, 2012 Real estate - commercial Owner occupied special purpose Nonaccrual contract	Dec. 31, 2011 Real estate - commercial Owner occupied special purpose Nonaccrual contract	Jun. 30, 2012 Real estate - commercial Non-owner occupied general purpose Accruing interest contract	Dec. 31, 2011 Real estate - commercial Non-owner occupied general purpose Accruing interest contract	Jun. 30, 2012 Real estate - commercial Non-owner occupied general purpose Nonaccrual contract	Dec. 31, 2011 Real estate - commercial Non-owner occupied general purpose Nonaccrual contract	Jun. 30, 2012 Real estate - commercial Non-owner occupied special purpose Nonaccrual contract	Dec. 31, 2011 Real estate - commercial Non-owner occupied special purpose Nonaccrual contract	Jun. 30, 2012 Real estate - construction Nonaccrual Interest contract	Jun. 30, 2012 Real estate - construction Homebuilder Accruing interest contract	Dec. 31, 2011 Real estate - construction Homebuilder Accruing interest contract	Jun. 30, 2012 Real estate - construction Homebuilder Nonaccrual contract	Dec. 31, 2011 Real estate - construction Homebuilder Nonaccrual contract	Dec. 31, 2011 Real estate - construction Land Nonaccrual contract	Jun. 30, 2011 Real estate - construction Commercial speculative contract	Jun. 30, 2011 Real estate - construction Commercial speculative contract	Jun. 30, 2012 Real estate - construction Commercial speculative Nonaccrual contract	Dec. 31, 2011 Real estate - construction Commercial speculative Nonaccrual contract	Jun. 30, 2011 Real estate - residential Investor contract	Jun. 30, 2012 Real estate - residential Investor Accruing interest	Dec. 31, 2011 Real estate - residential Investor Accruing interest contract	Jun. 30, 2012 Real estate - residential Investor Nonaccrual contract	Dec. 31, 2011 Real estate - residential Investor Nonaccrual contract	Jun. 30, 2012 Real estate - residential Investor Nonaccrual Bifurcate contract	Jun. 30, 2012 Real estate - residential Investor Nonaccrual Bifurcate contract	Jun. 30, 2011 Real estate - residential Owner occupied contract	Jun. 30, 2011 Real estate - residential Owner occupied contract	Jun. 30, 2012 Real estate - residential Owner occupied Accruing interest contract	Dec. 31, 2011 Real estate - residential Owner occupied Accruing interest contract	Jun. 30, 2012 Real estate - residential Owner occupied Accruing interest Deferral contract	Jun. 30, 2012 Real estate - residential Owner occupied Nonaccrual contract	Dec. 31, 2011 Real estate - residential Owner occupied Nonaccrual contract	Jun. 30, 2012 Real estate - residential Revolving and junior liens Accruing interest contract	Jun. 30, 2012 Real estate - residential Revolving and junior liens Accruing interest HAMP contract	Jun. 30, 2012 Real estate - residential Revolving and junior liens Accruing interest HAMP contract
TDR's outstanding
# of contracts			40	40	39	33	33	54	1	1					2	1	2	2	2	4	4	2	1		2	2	1	6	1			1	1			1	4	6					35	34		19	30	1
Recorded investment			$ 12,069	$ 12,069	$ 11,839	$ 11,295	$ 11,295	$ 16,189	$ 17	$ 17					$ 147	$ 359	$ 377	$ 3,754	$ 3,805	$ 4,513	$ 2,488	$ 497	$ 434		$ 2,683	$ 2,683	$ 1,342	$ 4,474	$ 737			$ 425	$ 65		$ 157	$ 157	$ 1,108	$ 1,931					$ 5,571	$ 5,194		$ 3,034	$ 5,519	$ 61
TDR's modified
# of contracts			1	2		3	4				1	1	1	1										1															1	1					1				1	1
Pre-modification recorded investment			117	225		3,467	3,892				2,921	2,921	209	209										425															337	337					108				117	117
Post-modification recorded investment			61	169		3,069	3,529				2,772	2,772	207	207										460															90	90					108				61	61
TDR's defaulted
# of contracts	7	13																												1	1			1							6	11
Pre-modification outstanding recorded investment	$ 996	$ 2,068																												$ 68	$ 68			$ 196							$ 928	$ 1,804