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Note 2 - Securities - Fair Value of Securities Available for Sale and The Related Unrealized Gains and Losses Recognized in Accumulated Comprehensive Income (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Amortized Cost	$ 381,763	$ 337,865
Gross Unrealized Gains	12,062	3,340
Gross Unrealized Losses	(487)	(1,626)
Fair Value	393,338	339,579
US Treasury and Government [Member]
Amortized Cost	2,008	17,231
Gross Unrealized Gains	53	23
Gross Unrealized Losses	0	(39)
Fair Value	2,061	17,215
US Treasury Securities [Member]
Amortized Cost	1,996	1,994
Gross Unrealized Gains	69	14
Gross Unrealized Losses	0	0
Fair Value	2,065	2,008
US States and Political Subdivisions Debt Securities [Member]
Amortized Cost	258,226	172,487
Gross Unrealized Gains	10,324	2,694
Gross Unrealized Losses	0	(1,257)
Fair Value	268,550	173,924
Collateralized Mortgage Backed Securities [Member]
Amortized Cost	115,695	142,504
Gross Unrealized Gains	1,565	585
Gross Unrealized Losses	(487)	(329)
Fair Value	116,773	142,760
Corporate Debt Securities [Member]
Amortized Cost	2,838	2,649
Gross Unrealized Gains	51	24
Gross Unrealized Losses	0	(1)
Fair Value	2,889	2,672
Trust Preferred Securities [Member]
Amortized Cost	1,000	1,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	$ 1,000	$ 1,000

X

- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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