Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	$ 756,814		$ 739,058
Total	0		776
Construction Land Development And Other Land Loans [Member] | Grade One [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	0		0
Construction Land Development And Other Land Loans [Member] | Grade Two [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	0		0
Construction Land Development And Other Land Loans [Member] | Grade Three [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	9,193		10,384
Construction Land Development And Other Land Loans [Member] | Grade Four [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	32,826		22,384
Construction Land Development And Other Land Loans [Member] | Grade W [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	8,616		6,735
Construction Land Development And Other Land Loans [Member] | Grade Five [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	2,296		3,354
Construction Land Development And Other Land Loans [Member] | Grade Six [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	4,859		4,000
Construction Land Development And Other Land Loans [Member] | Grade Seven [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	803		2,780
Construction Land Development And Other Land Loans [Member] | Not Risk Rated [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	16,807	[1]	16,486	[1]
Construction Land Development And Other Land Loans [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	75,400		66,123
Multi Family Residential [Member] | Grade One [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			0
Multi Family Residential [Member] | Grade Two [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			0
Multi Family Residential [Member] | Grade Three [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			404
Multi Family Residential [Member] | Grade Four [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			1,391
Multi Family Residential [Member] | Grade W [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			2,431
Multi Family Residential [Member] | Grade Five [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			7,183
Multi Family Residential [Member] | Grade Six [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			246
Multi Family Residential [Member] | Grade Seven [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			0
Multi Family Residential [Member] | Not Risk Rated [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			4	[1]
Multi Family Residential [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	10,695		11,659
Non Farm Nonresidential [Member] | Grade One [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	0		2,643
Non Farm Nonresidential [Member] | Grade Two [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	0		0
Non Farm Nonresidential [Member] | Grade Three [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	69,394		83,554
Non Farm Nonresidential [Member] | Grade Four [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	171,193		151,956
Non Farm Nonresidential [Member] | Grade W [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	79,937		73,306
Non Farm Nonresidential [Member] | Grade Five [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	17,447		28,910
Non Farm Nonresidential [Member] | Grade Six [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	29,084		38,328
Non Farm Nonresidential [Member] | Grade Seven [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	1,590		1,801
Non Farm Nonresidential [Member] | Not Risk Rated [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	318	[1]	156	[1]
Non Farm Nonresidential [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans	368,963		380,654
Commercial Real Estate in Other Loans Held for Sale [Member] | Grade One [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			0
Commercial Real Estate in Other Loans Held for Sale [Member] | Grade Two [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			0
Commercial Real Estate in Other Loans Held for Sale [Member] | Grade Three [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			0
Commercial Real Estate in Other Loans Held for Sale [Member] | Grade Four [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			0
Commercial Real Estate in Other Loans Held for Sale [Member] | Grade W [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			0
Commercial Real Estate in Other Loans Held for Sale [Member] | Grade Five [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			0
Commercial Real Estate in Other Loans Held for Sale [Member] | Grade Six [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			0
Commercial Real Estate in Other Loans Held for Sale [Member] | Grade Seven [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			776
Commercial Real Estate in Other Loans Held for Sale [Member] | Not Risk Rated [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			0	[1]
Commercial Real Estate in Other Loans Held for Sale [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			776
Commercial Real Estate Portfolio Segment [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			459,212
Less: Commercial real estate included in other loans held for sale			(776)
Total			458,436
Grade One [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			2,643
Grade Two [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			0
Grade Three [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			94,342
Grade Four [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			175,731
Grade W [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			82,472
Grade Five [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			39,447
Grade Six [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			42,574
Grade Seven [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			5,357
Not Risk Rated [Member]
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale December [Line Items]
Gross Loans			$ 16,646	[1]

[1] Consumer real estate loans, included within construction, land development and other land loans, are not risk rated in accordance with the Company's policy.