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Note 2 - Basis of Presentation (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Revenue, Remaining Performance Obligation, Amount | $ 0 |  | $ 0 |
Contract with Customer, Liability, Total | 0 |  | 0 |
Service and Other Charges On Deposit Accounts, Mortgage Fees from Secondary Market Transactions at the Bank, ATM Fee Income and Other Non-Interest Income [Member] |  |  |  |
Revenues, Total | $ 800 | $ 700 | $ 2,400 | $ 2,200

X
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