Short-Term Borrowings (Details Textual) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Short-Term Borrowings (Textual) [Abstract]
Short-term advances from FHLB	$ 0	$ 0
Unused lines of credit	15,000,000	15,000,000
Letter of Credit [Member]
Short-Term Borrowings (Textual) [Abstract]
Unused lines of credit	2,000,000
Unused lines of credit [Member]
Short-Term Borrowings (Textual) [Abstract]
Unused lines of credit	$ 70,760,000	$ 66,160,000