Note 12 - Fair Value (Detail) - Assets Carried At Fair Value On A Nonrecurring Basis By Caption On The Condensed Consolidated Balance Sheets And By Valuation Hierarchy (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012		Dec. 31, 2011
Goodwill [Member] | Fair Value, Inputs, Level 3 [Member]
Assets	$ 14,327		$ 14,327
Foreclosed Assets [Member] | Fair Value, Inputs, Level 3 [Member]
Assets	7,915		19,018
Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member]
Assets	9,704	[1]	15,696	[1]
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member]
Assets		[1]		[1]

[1] Impaired loans represent collateral dependent impaired loans with a specific valuation reserve.