Note 21 - Parent Only Condensed Financial Statements - Condensed Balance Sheets (Details) (Parentheticals) - $ / shares $ / shares in Thousands	Dec. 31, 2018	Dec. 31, 2017
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	8,194,805	8,098,605
Common stock, shares outstanding (in shares)	8,194,805	8,098,605
Parent Company [Member]
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	8,194,805	8,098,605
Common stock, shares outstanding (in shares)	8,194,805	8,098,605