Note 20 - Parent Only Condensed Financial Statements - Condensed Balance Sheets (Details) (Parentheticals) - $ / shares $ / shares in Thousands	Dec. 31, 2019	Dec. 31, 2018
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)	8,210,147	8,194,805
Common stock, shares outstanding (in shares)	8,210,147	8,194,805
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)	8,210,147	8,194,805
Common stock, shares outstanding (in shares)	8,210,147	8,194,805