Note 8 - Other Real Estate Owned (Detail) - OREO Activity (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Beginning balance	$ 38,157	$ 30,545
Transfers from loans	21,914	18,449
Proceeds from sales	(10,148)	(7,738)
Loss on sales	(241)	(298)
Write downs and other decreases, net	(2,202)	(4,965)
Ending balance	$ 47,480	$ 35,993