Note 5 - Allowances For Loan And Leases Losses And Real Estate Losses (Detail) - Allowance for Loan Losses by Portfolio Segment (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012	Dec. 31, 2012
Balance, beginning of year	$ 15,676		$ 20,818
Provision charged to expense			16
Losses charged off	(250)		(3,265)
Recoveries	171		771
Balance, end of year	15,597		18,340
ALLL Balances:
Individually evaluated for impairment	3,070			1,565
Collectively evaluated for impairment	12,527			14,111
Ending balance	15,597		18,340
Loan balances (1):
Individually evaluated for impairment	21,928	[1]		24,640	[1]
Collectively evaluated for impairment	327,592	[1]		328,552	[1]
Ending balance	349,520	[1],[2]		353,192	[1],[2]
One-to-Four-Family Residential [Member]
Balance, beginning of year	5,099		6,999
Provision charged to expense	1,724		(134)
Losses charged off	(87)		(436)
Recoveries	42		18
Balance, end of year	6,778		6,447
ALLL Balances:
Individually evaluated for impairment	513			275
Collectively evaluated for impairment	6,265			4,824
Ending balance	6,778		6,447
Loan balances (1):
Individually evaluated for impairment	7,729	[1]		8,142	[1]
Collectively evaluated for impairment	143,824	[1]		149,794	[1]
Ending balance	151,553	[1],[2]		157,936	[1],[2]
Multifamily Residential [Member]
Balance, beginning of year	1,319		3,332
Provision charged to expense	(245)		427
Losses charged off			(997)
Recoveries			17
Balance, end of year	1,074		2,779
ALLL Balances:
Individually evaluated for impairment	470
Collectively evaluated for impairment	604			1,319
Ending balance	1,074		2,779
Loan balances (1):
Individually evaluated for impairment	3,428	[1]		3,459	[1]
Collectively evaluated for impairment	17,710	[1]		17,331	[1]
Ending balance	21,138	[1],[2]		20,790	[1],[2]
Nonfarm Nonresidential [Member]
Balance, beginning of year	6,949		7,316
Provision charged to expense	(1,475)		646
Losses charged off	(134)		(1,736)
Recoveries	1		4
Balance, end of year	5,341		6,230
ALLL Balances:
Individually evaluated for impairment	1,198			778
Collectively evaluated for impairment	4,143			6,171
Ending balance	5,341		6,230
Loan balances (1):
Individually evaluated for impairment	6,529	[1]		8,472	[1]
Collectively evaluated for impairment	136,095	[1]		129,542	[1]
Ending balance	142,624	[1],[2]		138,014	[1],[2]
Construction and Land Development [Member]
Balance, beginning of year	1,130		1,973
Provision charged to expense	(24)		(440)
Recoveries	84		702
Balance, end of year	1,190		2,235
ALLL Balances:
Individually evaluated for impairment	502			130
Collectively evaluated for impairment	688			1,000
Ending balance	1,190		2,235
Loan balances (1):
Individually evaluated for impairment	3,809	[1]		4,133	[1]
Collectively evaluated for impairment	9,349	[1]		10,418	[1]
Ending balance	13,158	[1],[2]		14,551	[1],[2]
Commercial Loans [Member]
Balance, beginning of year	956		972
Provision charged to expense	25		(487)
Recoveries	19		6
Balance, end of year	1,000		491
ALLL Balances:
Individually evaluated for impairment	381			380
Collectively evaluated for impairment	619			576
Ending balance	1,000		491
Loan balances (1):
Individually evaluated for impairment	402	[1]		402	[1]
Collectively evaluated for impairment	15,431	[1]		15,681	[1]
Ending balance	15,833	[1],[2]		16,083	[1],[2]
Consumer Loans [Member]
Balance, beginning of year	223		226
Provision charged to expense	(5)		4
Losses charged off	(29)		(96)
Recoveries	25		24
Balance, end of year	214		158
ALLL Balances:
Individually evaluated for impairment	6			2
Collectively evaluated for impairment	208			221
Ending balance	214		158
Loan balances (1):
Individually evaluated for impairment	31	[1]		32	[1]
Collectively evaluated for impairment	5,183	[1]		5,786	[1]
Ending balance	$ 5,214	[1],[2]		$ 5,818	[1],[2]

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

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