Note 7 - Loans and Allowance for Loan Losses (Details) - Risk Category of Loans by Class-Consumer (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Note 7 - Loans and Allowance for Loan Losses (Details) - Risk Category of Loans by Class-Consumer [Line Items]
Loans	$ 970,179	$ 999,883
Consumer Secured [Member] | Performing Financing Receivable [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Risk Category of Loans by Class-Consumer [Line Items]
Loans	8,831	8,576
Consumer Secured [Member] | Nonperforming Financing Receivable [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Risk Category of Loans by Class-Consumer [Line Items]
Loans	5	3
Consumer Secured [Member] | Total [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Risk Category of Loans by Class-Consumer [Line Items]
Loans	8,836	8,579
Consumer Secured [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Risk Category of Loans by Class-Consumer [Line Items]
Loans	8,836	8,579
Consumer Unsecured [Member] | Performing Financing Receivable [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Risk Category of Loans by Class-Consumer [Line Items]
Loans	5,622	6,461
Consumer Unsecured [Member] | Nonperforming Financing Receivable [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Risk Category of Loans by Class-Consumer [Line Items]
Loans	48	52
Consumer Unsecured [Member] | Total [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Risk Category of Loans by Class-Consumer [Line Items]
Loans	5,670	6,513
Consumer Unsecured [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Risk Category of Loans by Class-Consumer [Line Items]
Loans	$ 5,670	$ 6,513