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Note 3 - Securities - Fair Value of Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Amortized cost	$ 163,949	$ 85,585
Gross unrealized gains	250	185
Gross unrealized losses	(5,248)	(76)
Fair value	158,951	85,694
Certificates of Deposit [Member]
Amortized cost	248	2,728
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Fair value	248	2,728
US States and Political Subdivisions Debt Securities [Member]
Amortized cost	400
Gross unrealized gains	0
Gross unrealized losses	(13)
Fair value	387
US Treasury Securities [Member]
Amortized cost	157,573	76,621
Gross unrealized gains	197	8
Gross unrealized losses	(5,193)	(76)
Fair value	152,577	76,553
Residential Mortgage-Backed Securities [Member]
Amortized cost	4,362	4,660
Gross unrealized gains	53	173
Gross unrealized losses	(33)	0
Fair value	4,382	4,833
Collateralized Mortgage-Backed Securities [Member]
Amortized cost	1,366	1,576
Gross unrealized gains	0	4
Gross unrealized losses	(9)	0
Fair value	$ 1,357	$ 1,580

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).

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