Note 6 - Loans (Details) - Summary of Period Ending Balances of Newly Restructured Loans and Types of Modifications (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Note 6 - Loans (Details) - Summary of Period Ending Balances of Newly Restructured Loans and Types of Modifications [Line Items]
Maturity	$ 695
Total	695	599
Commercial Portfolio Segment [Member]
Note 6 - Loans (Details) - Summary of Period Ending Balances of Newly Restructured Loans and Types of Modifications [Line Items]
Maturity	695
Total	$ 695