Details of Operating Expenses (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Summary of composition of other operating expenses
Total other operating expenses	$ 3,472	$ 3,526
ATM and debit cards [Member]
Summary of composition of other operating expenses
Total other operating expenses	653	622
Telephone [Member]
Summary of composition of other operating expenses
Total other operating expenses	331	440
Loan [Member]
Summary of composition of other operating expenses
Total other operating expenses	529	942
Stationary and supplies [Member]
Summary of composition of other operating expenses
Total other operating expenses	173	185
OREO expenses [Member]
Summary of composition of other operating expenses
Total other operating expenses	298
Other operating [Member]
Summary of composition of other operating expenses
Total other operating expenses	$ 1,488	$ 1,337