Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	$ 741,355	$ 739,058
Construction Land Development And Other Land Loans [Member] | Grade One [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	0	0
Construction Land Development And Other Land Loans [Member] | Grade Two [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	0	0
Construction Land Development And Other Land Loans [Member] | Grade Three [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	8,785	10,384
Construction Land Development And Other Land Loans [Member] | Grade Four [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	28,144	22,384
Construction Land Development And Other Land Loans [Member] | Grade W [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	8,432	6,735
Construction Land Development And Other Land Loans [Member] | Grade Five [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	2,021	3,354
Construction Land Development And Other Land Loans [Member] | Grade Six [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	5,078	4,000
Construction Land Development And Other Land Loans [Member] | Grade Seven [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	803	2,780
Construction Land Development And Other Land Loans [Member] | Not Risk Rated [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	16,072	16,486
Construction Land Development And Other Land Loans [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	69,335	66,123
Multi Family [Member] | Grade One [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	0
Multi Family [Member] | Grade Two [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	0
Multi Family [Member] | Grade Three [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	283
Multi Family [Member] | Grade Four [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	1,381
Multi Family [Member] | Grade W [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	9,342
Multi Family [Member] | Grade Five [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	0
Multi Family [Member] | Grade Six [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	181
Multi Family [Member] | Grade Seven [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	0
Multi Family [Member] | Not Risk Rated [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	9
Multi Family [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	11,196
Non Farm Nonresidential [Member] | Grade One [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	0	2,643
Non Farm Nonresidential [Member] | Grade Two [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	0	0
Non Farm Nonresidential [Member] | Grade Three [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	78,537	83,554
Non Farm Nonresidential [Member] | Grade Four [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	166,570	151,956
Non Farm Nonresidential [Member] | Grade W [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	64,670	73,306
Non Farm Nonresidential [Member] | Grade Five [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	20,326	28,910
Non Farm Nonresidential [Member] | Grade Six [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	37,066	38,328
Non Farm Nonresidential [Member] | Grade Seven [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	1,615	1,801
Non Farm Nonresidential [Member] | Not Risk Rated [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	304	156
Non Farm Nonresidential [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	369,088	380,654
Commercial Real Estate Loans [Member] | Grade One [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	0
Commercial Real Estate Loans [Member] | Grade Two [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	0
Commercial Real Estate Loans [Member] | Grade Three [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	87,605
Commercial Real Estate Loans [Member] | Grade Four [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	196,095
Commercial Real Estate Loans [Member] | Grade W [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	82,444
Commercial Real Estate Loans [Member] | Grade Five [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	22,347
Commercial Real Estate Loans [Member] | Grade Six [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	42,325
Commercial Real Estate Loans [Member] | Grade Seven [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	2,418
Commercial Real Estate Loans [Member] | Not Risk Rated [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	16,385
Commercial Real Estate Loans [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans	449,619	459,212
Grade One [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans		2,643
Grade Two [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans		0
Grade Three [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans		94,342
Grade Four [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans		175,731
Grade W [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans		82,472
Grade Five [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans		39,447
Grade Six [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans		42,574
Grade Seven [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans		5,357
Not Risk Rated [Member]
Note 4 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale June [Line Items]
Gross Loans		$ 16,646