Subsequent Event (Details) (USD $)					0 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011	Oct. 02, 2013 Commerce National Bank [Member]	Oct. 02, 2013 No Evidence of credit deterioration [Member]	May 10, 2013 No Evidence of credit deterioration [Member]	Feb. 28, 2013 No Evidence of credit deterioration [Member]	Feb. 29, 2012 No Evidence of credit deterioration [Member]
Business Acquisition [Line Items]
Cash and cash equivalents					$ 8,555,000
Investments and MBS					69,490,000
Loans receivable					161,043,000
Goodwill	36,633,000	22,577,000	22,577,000	0	14,408,000
Core deposit intangible					1,160,000
Other assets					5,276,000
Total assets acquired					259,932,000
Deposits					189,563,000
Advances from FHLB					25,000,000
Other Liabilties					2,462,000
Total liabilities assumed					217,025,000
Net assets acquired					42,907,000
Unpaid principal balance and contractual interest						164,200,000	280,700,000	83,300,000	403,800,000
Cash flows not expected to be collected						3,700,000	3,500,000	3,900,000	12,700,000
Discount on acquired loans						$ 3,800,000	$ 5,100,000	$ 4,500,000	$ 21,800,000