Note 15 - Fair Values (Details) - Reconciliation of Assets and Liabilities Measured at Fair Value Using Significant Unobservable Inputs (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Obligations of States and Political Subdivisions [Member]
Note 15 - Fair Values (Details) - Reconciliation of Assets and Liabilities Measured at Fair Value Using Significant Unobservable Inputs [Line Items]
Beginning balance	$ 1,131
Transfers into Level 3	0
Change included in earnings	0
Purchases and issuances	0
Sales and settlements	0
Transfers out	(1,131)
Ending balance	0
Net change in unrealized gains or (losses) relating to items held at end of period	0
Collateralized Mortgage Backed Securities [Member]
Note 15 - Fair Values (Details) - Reconciliation of Assets and Liabilities Measured at Fair Value Using Significant Unobservable Inputs [Line Items]
Beginning balance	13,747
Transfers into Level 3	0
Change included in earnings	0
Purchases and issuances	0
Sales and settlements	(749)
Transfers out	(12,998)
Ending balance	0
Net change in unrealized gains or (losses) relating to items held at end of period	$ 0