Loans (Details 7) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
TDRs Greater than 30 Days Past Due and Still Accruing	$ 38	$ 374
TDRs on Nonaccrual	4,077	2,385
Total TDRs Not Performing to Modified Terms	4,115	2,759
Total TDRs Defaulted Within 12 Months of Modification	3,913	2,648
Commercial Loan [Member] | Multiple Modifications [Member]
TDRs Greater than 30 Days Past Due and Still Accruing	0	262
TDRs on Nonaccrual	100	0
Total TDRs Not Performing to Modified Terms	100	262
Total TDRs Defaulted Within 12 Months of Modification	100	262
Commercial Loan [Member] | Other Non Farm and Non Residential Interest Only Payments [Member]
TDRs Greater than 30 Days Past Due and Still Accruing		0
TDRs on Nonaccrual		500
Total TDRs Not Performing to Modified Terms		500
Total TDRs Defaulted Within 12 Months of Modification		500
Commercial Loan [Member] | Extended Maturity [Member]
TDRs Greater than 30 Days Past Due and Still Accruing		1
TDRs on Nonaccrual		248
Total TDRs Not Performing to Modified Terms		249
Total TDRs Defaulted Within 12 Months of Modification		249
Construction Loans [Member] | Multiple Modifications [Member]
TDRs Greater than 30 Days Past Due and Still Accruing	0
TDRs on Nonaccrual	2,656
Total TDRs Not Performing to Modified Terms	2,656
Total TDRs Defaulted Within 12 Months of Modification	2,656
Construction Loans [Member] | Extended Maturity [Member]
TDRs Greater than 30 Days Past Due and Still Accruing	0	0
TDRs on Nonaccrual	30	510
Total TDRs Not Performing to Modified Terms	30	510
Total TDRs Defaulted Within 12 Months of Modification	30	510
Commercial Real Estate [Member] | Owner Occupied Non Farm Residential [Member]
TDRs Greater than 30 Days Past Due and Still Accruing		0
TDRs on Nonaccrual		0
Total TDRs Not Performing to Modified Terms		0
Total TDRs Defaulted Within 12 Months of Modification		0
Commercial Real Estate [Member] | Other Non Farm and Non Residential Multile Modifications [Member]
TDRs Greater than 30 Days Past Due and Still Accruing	0	0
TDRs on Nonaccrual	1,127	1,127
Total TDRs Not Performing to Modified Terms	1,127	1,127
Total TDRs Defaulted Within 12 Months of Modification	1,127	1,127
Residential Real Estate [Member] | Multiple Modifications [Member]
TDRs Greater than 30 Days Past Due and Still Accruing	38	111
TDRs on Nonaccrual	164	0
Total TDRs Not Performing to Modified Terms	202	111
Total TDRs Defaulted Within 12 Months of Modification	0	0
Residential Real Estate [Member] | Home Equity [Member]
TDRs Greater than 30 Days Past Due and Still Accruing		0
TDRs on Nonaccrual		0
Total TDRs Not Performing to Modified Terms		0
Total TDRs Defaulted Within 12 Months of Modification		0
Consumer Loan [Member]
TDRs Greater than 30 Days Past Due and Still Accruing		0
TDRs on Nonaccrual		0
Total TDRs Not Performing to Modified Terms		0
Total TDRs Defaulted Within 12 Months of Modification		$ 0