Employee Benefit Plans (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
401K Plan [Abstract]
Employers matching contribution vesting percentage (in hundredths)	100.00%
Matching contributions	$ 229,000	$ 172,000
Salary Continuation Plan [Abstract]
Salary continuation contracts	20 years
Salary continuation plan accrued liability	4,300,000	4,000,000
Discounted cash flow rate (in hundredths)	2.55%	3.57%
Cash surrender value	4,300,000	4,200,000
Unrecognized net periodic benefit costs	598,000	395,000
Officer Supplemental Life Insurance Plan [Abstract]
Cash surrender value of life insurance	16,681,000	16,150,000
Increase in cash surrender value of BOLI	564,000	565,000
Maximum [Member]
401K Plan [Abstract]
Matching contribution (in hundredths)	5.00%
Salary Continuation Plan [Member]
Salary Continuation Plan [Abstract]
Additional compensation benefits term	15 years
Salaries and benefits expense	$ 90,000	$ 101,000
Salary Continuation Plan [Member] | Minimum [Member]
Salary Continuation Plan [Abstract]
Benefit plan vesting period	12 years
Salary Continuation Plan [Member] | Maximum [Member]
Salary Continuation Plan [Abstract]
Benefit plan vesting period	15 years