Note 6 - Loans Receivable (Details) - Troubled Debt Restructurings ("TDRs") (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Modifications [Line Items]
Balance	$ 2,600	$ 9,200
Accruing Troubled Debt Restructurings [Member] | One-to-Four-Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	4	12
Balance	495	1,115
Accruing Troubled Debt Restructurings [Member] | Multifamily Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans		1
Balance		3,459
Accruing Troubled Debt Restructurings [Member] | Nonfarm Nonresidential [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans		1
Balance		1,235
Accruing Troubled Debt Restructurings [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans		3
Balance		7
Accruing Troubled Debt Restructurings [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	4	17
Balance	495	5,816
Nonaccrual Troubled Debt Restructurings [Member] | One-to-Four-Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	8	9
Balance	658	1,461
Nonaccrual Troubled Debt Restructurings [Member] | Nonfarm Nonresidential [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	3	3
Balance	556	606
Nonaccrual Troubled Debt Restructurings [Member] | Construction and Land Development [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	5	6
Balance	856	1,315
Nonaccrual Troubled Debt Restructurings [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	1
Balance	5
Nonaccrual Troubled Debt Restructurings [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	17	18
Balance	2,075	3,382
Troubled Debt Restructuring [Member] | One-to-Four-Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	12	21
Balance	1,153	2,576
Troubled Debt Restructuring [Member] | Multifamily Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans		1
Balance		3,459
Troubled Debt Restructuring [Member] | Nonfarm Nonresidential [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	3	4
Balance	556	1,841
Troubled Debt Restructuring [Member] | Construction and Land Development [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	5	6
Balance	856	1,315
Troubled Debt Restructuring [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	1	3
Balance	5	7
Troubled Debt Restructuring [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	21	35
Balance	$ 2,570	$ 9,198