Preferred Stock (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified			9 Months Ended					0 Months Ended		0 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 Second Through Tenth Dividend Periods [Member] Maximum [Member]	Sep. 30, 2012 Second Through Tenth Dividend Periods [Member] Minimum [Member]	Sep. 30, 2012 Eleventh Through Nineteenth Dividend Periods [Member] Maximum [Member]	Sep. 30, 2012 Eleventh Through Nineteenth Dividend Periods [Member] Minimum [Member]	Sep. 30, 2012 Series AA Preferred Stock Remains Outstanding For More Than Four And One Half Years [Member]	Sep. 25, 2011 Small Business Lending Fund Program [Member]	Sep. 22, 2011 Small Business Lending Fund Program [Member] Maximum [Member]	Sep. 25, 2011 Qualified Small Business Lending [Member]	Sep. 22, 2011 Senior Non Cumulative Perpetual Preferred Stock Series AA [Member]
Preferred stock, shares issued	12,562	12,562									12,562
Preferred stock, liquidation preference (in dollars per share)	$ 1,000	$ 1,000									$ 1,000
Preferred Stock, Value, Issued	$ 12,562	$ 12,562									$ 12,562
Funds Raised from Small Business Act								3,000,000
Total assets	$ 368,481	$ 323,082							$ 10,000,000
Preferred Stock Aggregate Liquidation Amount Dividend Rate Percentage										5.00%
Preferred Stock, Dividend Rate, Percentage			5.00%	1.00%	7.00%	1.00%	9.00%