Loans and Allowance for Loan Losses (Details 4) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Summary of past due and non-accrual loans
30-59 Days	$ 1,447	$ 904
60-89 Days	303	1,212
90 Days or More	3,063	2,734
Total Past Due	4,813	4,850
90 days or more and accruing
Loans on Non-accrual	3,267	4,427
Commercial [Member] | Other loans [Member]
Summary of past due and non-accrual loans
30-59 Days	2	10
60-89 Days
90 Days or More		7
Total Past Due	2	17
90 days or more and accruing
Loans on Non-accrual	4	155
Consumer [Member] | Other loans [Member]
Summary of past due and non-accrual loans
30-59 Days
60-89 Days		1
90 Days or More	1
Total Past Due	1	1
90 days or more and accruing
Loans on Non-accrual	1
Residential one-to-four family [Member] | Real estate loans [Member]
Summary of past due and non-accrual loans
30-59 Days	1	51
60-89 Days	260	1,188
90 Days or More	2,569	1,880
Total Past Due	2,830	3,119
90 days or more and accruing
Loans on Non-accrual	2,569	3,149
Commercial real estate [Member] | Real estate loans [Member]
Summary of past due and non-accrual loans
30-59 Days
60-89 Days
90 Days or More
Total Past Due
90 days or more and accruing
Loans on Non-accrual
Equity lines of credit [Member] | Real estate loans [Member]
Summary of past due and non-accrual loans
30-59 Days	98	634
60-89 Days
90 Days or More	493	847
Total Past Due	591	1,481
90 days or more and accruing
Loans on Non-accrual	693	1,123
Construction [Member] | Real estate loans [Member]
Summary of past due and non-accrual loans
30-59 Days	1,210
60-89 Days
90 Days or More
Total Past Due	1,210
90 days or more and accruing
Loans on Non-accrual
Indirect auto [Member] | Other loans [Member]
Summary of past due and non-accrual loans
30-59 Days	136	209
60-89 Days	43	23
90 Days or More
Total Past Due	179	232
90 days or more and accruing
Loans on Non-accrual