Note 19 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Money Market Funds, at Carrying Value | $ 18,550 | $ 11,000 |
| Loans and Leases Receivable, Deferred Income | 0 | |
| Commitments to Extend Credit [Member] | ||
| Loans and Leases Receivable, Deferred Income | 0 | |
| Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability | 0 | |
| Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member] | ||
| Assets, Fair Value Disclosure | 18,600 | |
| Financial Standby Letter of Credit [Member] | ||
| Loans and Leases Receivable, Deferred Income | 0 | |
| Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability | $ 0 |