Note 3 - Restricted Cash Balances (Details Textual) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Average Reserves Maintained with Federal Reserve Bank | $ 1,500 | $ 1,000 |
| Compensating Balances Maintained at Correspondent Banks | $ 133 | $ 173 |