Securities (Details Textual) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012 Security	Sep. 30, 2011	Sep. 30, 2012 Security	Sep. 30, 2011	Dec. 31, 2011
Securities (Textual) [Abstract]
Proceeds from the sale of securities	$ 0	$ 0	$ 12,982	$ 300
Gross gains from the sale of securities			99	0
Gross losses from the sale of securities			59	0
Carrying value of pledged securities	148,811		148,811		156,114
Gains from securities called or settled by the issuer			$ 40	$ 3
Number of securities in the portfolio with unrealized losses	16		16