Note 5 - Covered Assets (Detail) - Covered Assets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012		Dec. 31, 2011
Home equity lines (1)	$ 44,529	[1]	$ 45,451	[1]
Purchased impaired loans (2)	142,324	[2]	178,025	[2]
Other covered loans (3)	29,757	[3]	37,026	[3]
Total covered loans	216,610	[4]	260,502	[4]
FDIC indemnification asset	47,191		65,609
Covered OREO	8,729		23,455
Total covered assets	272,530		349,566
Covered non-accrual loans	16,372		19,879
Covered loans past due 90 days or more and still accruing interest	$ 34,554		$ 43,347

[1] These loans are open-end consumer loans that are not categorized as purchased impaired loans.

[2] Purchased impaired loans are recorded at their estimated fair values on the respective purchase dates and are accounted for prospectively based on expected cash flows.

[3] These are loans that did not have evidence of impairment on the date of acquisition.

[4] For information on covered loans, refer to Note 5, "Covered Assets."