Note 2 - Securities - Securities With Unrealized Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Available for sale, fair value, less than 12 months	$ 42,745	$ 41,474
Available for sale, unrealized loss, less than 12 months	(2,942)	(293)
Available for sale, fair value, 12 months or more	31,669	46,001
Available for sale, unrealized loss, 12 months or more	(3,182)	(524)
Available for sale, fair value	74,414	87,475
Available for sale, unrealized loss	(6,124)	(817)
US Treasury and Government [Member]
Available for sale, fair value, less than 12 months		12,567
Available for sale, unrealized loss, less than 12 months		(147)
Available for sale, fair value, 12 months or more
Available for sale, unrealized loss, 12 months or more
Available for sale, fair value		12,567
Available for sale, unrealized loss		(147)
Residential Mortgage Backed Securities [Member]
Available for sale, fair value, less than 12 months	10,843	18,457
Available for sale, unrealized loss, less than 12 months	(120)	(97)
Available for sale, fair value, 12 months or more	1,617	10,665
Available for sale, unrealized loss, 12 months or more	(47)	(158)
Available for sale, fair value	12,460	29,122
Available for sale, unrealized loss	(167)	(255)
Collateralized Loan Obligations [Member]
Available for sale, fair value, less than 12 months	10,702	9,539
Available for sale, unrealized loss, less than 12 months	(843)	(46)
Available for sale, fair value, 12 months or more	30,052	35,336
Available for sale, unrealized loss, 12 months or more	(3,135)	(366)
Available for sale, fair value	40,754	44,875
Available for sale, unrealized loss	(3,978)	(412)
US States and Political Subdivisions Debt Securities [Member]
Available for sale, fair value, less than 12 months	10,192	911
Available for sale, unrealized loss, less than 12 months	(493)	(3)
Available for sale, fair value, 12 months or more
Available for sale, unrealized loss, 12 months or more
Available for sale, fair value	10,192	911
Available for sale, unrealized loss	(493)	(3)
Corporate Debt Securities [Member]
Available for sale, fair value, less than 12 months	11,008
Available for sale, unrealized loss, less than 12 months	(1,486)
Available for sale, fair value, 12 months or more
Available for sale, unrealized loss, 12 months or more
Available for sale, fair value	11,008
Available for sale, unrealized loss	$ (1,486)

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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