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Note 9 - Subordinated Debentures (Details) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2005
Guaranty Statutory Trust I [Member]
Dec. 31, 2005
Guaranty Statutory Trust II [Member]
Dec. 31, 2005
Guaranty Statutory Trust I [Member]
Dec. 31, 2005
Guaranty Statutory Trust II [Member]
Note 9 - Subordinated Debentures (Details) [Line Items]            
Guarantor Obligations, Maximum Exposure, Undiscounted     $ 5,000,000 $ 10,000,000    
Subordinated Debt $ 15,465,000 $ 15,465,000     $ 5,155,000 $ 10,310,000