Note 4 - Loans Receivable (Detail) - Financing Receivable by Credit Quality Indicators (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012
Financing Receivable	$ 349,520	[1],[2]	$ 353,192	[1],[2]
Pass [Member] | One-to-Four-Family Residential [Member]
Financing Receivable	31,888		30,216
Pass [Member] | Multifamily Residential [Member]
Financing Receivable	17,349		16,695
Pass [Member] | Nonfarm Nonresidential [Member]
Financing Receivable	123,545		117,604
Pass [Member] | Construction and Land Development [Member]
Financing Receivable	4,789		5,298
Pass [Member] | Commercial Loans [Member]
Financing Receivable	14,933		15,127
Pass [Member] | Consumer Loans [Member]
Financing Receivable	157		159
Pass [Member]
Financing Receivable	192,661	[1]	185,099	[1]
Special Mention [Member] | One-to-Four-Family Residential [Member]
Financing Receivable	3,121		3,698
Special Mention [Member] | Nonfarm Nonresidential [Member]
Financing Receivable	7,104		7,445
Special Mention [Member] | Construction and Land Development [Member]
Financing Receivable	397		867
Special Mention [Member] | Commercial Loans [Member]
Financing Receivable			340
Special Mention [Member]
Financing Receivable	10,622	[1]	12,350	[1]
Substandard [Member] | One-to-Four-Family Residential [Member]
Financing Receivable	12,898		12,993
Substandard [Member] | Multifamily Residential [Member]
Financing Receivable	3,775		4,078
Substandard [Member] | Nonfarm Nonresidential [Member]
Financing Receivable	11,090		12,045
Substandard [Member] | Construction and Land Development [Member]
Financing Receivable	4,600		4,934
Substandard [Member] | Commercial Loans [Member]
Financing Receivable	747		425
Substandard [Member] | Consumer Loans [Member]
Financing Receivable	47		45
Substandard [Member]
Financing Receivable	33,157	[1]	34,520	[1]
Not Rated [Member] | One-to-Four-Family Residential [Member]
Financing Receivable	103,646		111,029
Not Rated [Member] | Multifamily Residential [Member]
Financing Receivable	14		17
Not Rated [Member] | Nonfarm Nonresidential [Member]
Financing Receivable	885		920
Not Rated [Member] | Construction and Land Development [Member]
Financing Receivable	3,372		3,452
Not Rated [Member] | Commercial Loans [Member]
Financing Receivable	153		191
Not Rated [Member] | Consumer Loans [Member]
Financing Receivable	5,010		5,614
Not Rated [Member]
Financing Receivable	113,080	[1]	121,223	[1]
One-to-Four-Family Residential [Member]
Financing Receivable	151,553	[1],[2]	157,936	[1],[2]
Multifamily Residential [Member]
Financing Receivable	21,138	[1],[2]	20,790	[1],[2]
Nonfarm Nonresidential [Member]
Financing Receivable	142,624	[1],[2]	138,014	[1],[2]
Construction and Land Development [Member]
Financing Receivable	13,158	[1],[2]	14,551	[1],[2]
Commercial Loans [Member]
Financing Receivable	15,833	[1],[2]	16,083	[1],[2]
Consumer Loans [Member]
Financing Receivable	$ 5,214	[1],[2]	$ 5,818	[1],[2]

[1] Gross of unearned discounts and net loan costs and the allowance for loan and lease losses.

[2] Gross unearned discounts and net deferred loan costs and the allowance for loan and lease losses.