Note 5 - Loans (Details) - Composition of Impaired Loans by Class (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Note 5 - Loans (Details) - Composition of Impaired Loans by Class [Line Items]
Impaired loans with no related allowance, recorded investment	$ 24,404	$ 22,968
Impaired loans with no related allowance, unpaid principal balance	34,767	38,132
Impaired loans with related allowance, recorded investment	18,269	21,727
Impaired loans with related allowance, unpaid principal balance	21,023	23,027
Impaired loans with related allowance, related allowance	2,025	2,555
Total Impaired Loans, recorded investment	42,673	44,695
Total Impaired Loans, unpaid principal balance	55,790	61,159
Total Impaired Loans, related allowance	2,025	2,555
Construction, Land Development and Other Land Loan [Member]
Note 5 - Loans (Details) - Composition of Impaired Loans by Class [Line Items]
Impaired loans with no related allowance, recorded investment	710	3,244
Impaired loans with no related allowance, unpaid principal balance	4,111	6,503
Impaired loans with related allowance, recorded investment	258	260
Impaired loans with related allowance, unpaid principal balance	258	260
Impaired loans with related allowance, related allowance	68	68
Total Impaired Loans, recorded investment	968	3,504
Total Impaired Loans, unpaid principal balance	4,369	6,763
Total Impaired Loans, related allowance	68	68
Multi Family Residential [Member]
Note 5 - Loans (Details) - Composition of Impaired Loans by Class [Line Items]
Impaired loans with no related allowance, recorded investment		181
Impaired loans with no related allowance, unpaid principal balance	59	239
Total Impaired Loans, recorded investment		181
Total Impaired Loans, unpaid principal balance	59	239
Non Farm Nonresidential [Member]
Note 5 - Loans (Details) - Composition of Impaired Loans by Class [Line Items]
Impaired loans with no related allowance, recorded investment	22,383	17,414
Impaired loans with no related allowance, unpaid principal balance	27,191	24,422
Impaired loans with related allowance, recorded investment	15,526	18,839
Impaired loans with related allowance, unpaid principal balance	16,981	18,839
Impaired loans with related allowance, related allowance	1,690	1,668
Total Impaired Loans, recorded investment	37,909	36,253
Total Impaired Loans, unpaid principal balance	44,172	43,261
Total Impaired Loans, related allowance	1,690	1,668
Commercial Real Estate Loans [Member]
Note 5 - Loans (Details) - Composition of Impaired Loans by Class [Line Items]
Impaired loans with no related allowance, recorded investment	23,093	20,839
Impaired loans with no related allowance, unpaid principal balance	31,361	31,164
Impaired loans with related allowance, recorded investment	15,784	19,099
Impaired loans with related allowance, unpaid principal balance	17,239	19,099
Impaired loans with related allowance, related allowance	1,758	1,736
Total Impaired Loans, recorded investment	38,877	39,938
Total Impaired Loans, unpaid principal balance	48,600	50,263
Total Impaired Loans, related allowance	1,758	1,736
Single-family Real Estate, Revolving, Open-end Loans [Member]
Note 5 - Loans (Details) - Composition of Impaired Loans by Class [Line Items]
Impaired loans with related allowance, recorded investment	404	404
Impaired loans with related allowance, unpaid principal balance	404	404
Impaired loans with related allowance, related allowance	83	83
Total Impaired Loans, recorded investment	404	404
Total Impaired Loans, unpaid principal balance	404	404
Total Impaired Loans, related allowance	83	83
Single Family Residential Closed End First Lien [Member]
Note 5 - Loans (Details) - Composition of Impaired Loans by Class [Line Items]
Impaired loans with no related allowance, recorded investment	912	1,369
Impaired loans with no related allowance, unpaid principal balance	3,007	5,811
Impaired loans with related allowance, recorded investment	250	323
Impaired loans with related allowance, unpaid principal balance	250	323
Impaired loans with related allowance, related allowance	28	18
Total Impaired Loans, recorded investment	1,162	1,692
Total Impaired Loans, unpaid principal balance	3,257	6,134
Total Impaired Loans, related allowance	28	18
Single Family Residential Closed End Junior Lien [Member]
Note 5 - Loans (Details) - Composition of Impaired Loans by Class [Line Items]
Impaired loans with no related allowance, recorded investment	26
Impaired loans with no related allowance, unpaid principal balance	26
Impaired loans with related allowance, recorded investment	165	195
Impaired loans with related allowance, unpaid principal balance	165	195
Impaired loans with related allowance, related allowance	54	62
Total Impaired Loans, recorded investment	191	195
Total Impaired Loans, unpaid principal balance	191	195
Total Impaired Loans, related allowance	54	62
Single Family Residential [Member]
Note 5 - Loans (Details) - Composition of Impaired Loans by Class [Line Items]
Impaired loans with no related allowance, recorded investment	938	1,369
Impaired loans with no related allowance, unpaid principal balance	3,033	5,811
Impaired loans with related allowance, recorded investment	819	922
Impaired loans with related allowance, unpaid principal balance	819	922
Impaired loans with related allowance, related allowance	165	163
Total Impaired Loans, recorded investment	1,757	2,291
Total Impaired Loans, unpaid principal balance	3,852	6,733
Total Impaired Loans, related allowance	165	163
Commercial and Industrial [Member]
Note 5 - Loans (Details) - Composition of Impaired Loans by Class [Line Items]
Impaired loans with no related allowance, recorded investment	373	753
Impaired loans with no related allowance, unpaid principal balance	373	1,150
Impaired loans with related allowance, recorded investment	1,650	1,680
Impaired loans with related allowance, unpaid principal balance	2,949	2,980
Impaired loans with related allowance, related allowance	99	644
Total Impaired Loans, recorded investment	2,023	2,433
Total Impaired Loans, unpaid principal balance	3,322	4,130
Total Impaired Loans, related allowance	99	644
Consumer [Member]
Note 5 - Loans (Details) - Composition of Impaired Loans by Class [Line Items]
Impaired loans with no related allowance, recorded investment		7
Impaired loans with no related allowance, unpaid principal balance		7
Impaired loans with related allowance, recorded investment	16	26
Impaired loans with related allowance, unpaid principal balance	16	26
Impaired loans with related allowance, related allowance	3	12
Total Impaired Loans, recorded investment	16	33
Total Impaired Loans, unpaid principal balance	16	33
Total Impaired Loans, related allowance	$ 3	$ 12