Note 3 - Securities (Detail) - Certain Characteristics and Metrics of the CDOs as of June 30, 2011 (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2011
No1 C1[Member]
Original Par	$ 17,500
Amortized Cost	7,140
Fair Value	3,353
Number of Banks/Insurers	46
Actual Defferals and Defaults as a Percentage of the Original Collateral	15.80%	[1]
Expected Deferrals and Defaults as a % of the Remaining Performing Collateral	20.70%	[1]
Excess Subordination as a Percent of the Remaining Performing Collateral	0.00%	[2]
No2 C1[Member]
Original Par	15,000
Amortized Cost	7,657
Fair Value	2,477
Number of Banks/Insurers	57
Actual Defferals and Defaults as a Percentage of the Original Collateral	12.10%	[1]
Expected Deferrals and Defaults as a % of the Remaining Performing Collateral	18.80%	[1]
Excess Subordination as a Percent of the Remaining Performing Collateral	0.00%	[2]
No3 C1[Member]
Original Par	15,000
Amortized Cost	13,480
Fair Value	4,016
Number of Banks/Insurers	63
Actual Defferals and Defaults as a Percentage of the Original Collateral	7.80%	[1]
Expected Deferrals and Defaults as a % of the Remaining Performing Collateral	15.50%	[1]
Excess Subordination as a Percent of the Remaining Performing Collateral	6.00%	[2]
No4 B1[Member]
Original Par	15,000
Amortized Cost	13,922
Fair Value	4,344
Number of Banks/Insurers	64
Actual Defferals and Defaults as a Percentage of the Original Collateral	35.00%	[1]
Expected Deferrals and Defaults as a % of the Remaining Performing Collateral	23.50%	[1]
Excess Subordination as a Percent of the Remaining Performing Collateral	0.00%	[2]
No5C [Member]
Original Par	10,000
Amortized Cost	1,317
Fair Value	212
Number of Banks/Insurers	56
Actual Defferals and Defaults as a Percentage of the Original Collateral	44.60%	[1]
Expected Deferrals and Defaults as a % of the Remaining Performing Collateral	28.10%	[1]
Excess Subordination as a Percent of the Remaining Performing Collateral	0.00%	[2]
No6C [Member]
Original Par	6,500
Amortized Cost	6,179
Fair Value	2,085
Number of Banks/Insurers	77
Actual Defferals and Defaults as a Percentage of the Original Collateral	23.10%	[1]
Expected Deferrals and Defaults as a % of the Remaining Performing Collateral	12.80%	[1]
Excess Subordination as a Percent of the Remaining Performing Collateral	10.50%	[2]
No7 A3L [Member]
Original Par	6,750	[3]
Total Class [Member]
Original Par	85,750
Amortized Cost	49,695
Fair Value	$ 16,487

[1] Deferrals and defaults are provided net of recoveries. No recovery is assumed for collateral that has already defaulted. For deferring collateral, the Company assumes a recovery rate of 10% of par for banks, thrifts, and other depository institutions and 15% of par for insurance companies.

[2] Excess subordination represents additional defaults in excess of current defaults that the CDO can absorb before the security experiences any credit impairment. The excess subordination percentage is calculated by dividing the amount of potential additional loss that can be absorbed (before the receipt of all expected future principal and interest payments is affected) by the total balance of performing collateral. Even with excess subordination, the CDO could experience an OTTI charge if future deterioration of underlying collateral in excess of current excess subordination is anticipated.

[3] Characteristics and metrics are not reported for this CDO since the security had an amortized cost and fair value of zero as of June 30, 2011.