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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

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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