Note 6 - Core Deposit and Customer List Intangible Assets - Changes in the Net Carrying Amount of Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Amortization	$ (713)	$ (77)
Core Deposits [Member]
Balance at beginning of period	5,596	1,962
Intangible acquired	12,724	0
Provisional period adjustments	0	0
Amortization	(494)	(77)
Balance at end of period	17,826	1,885
Customer Lists [Member]
Balance at beginning of period	0	0
Intangible acquired	14,360	0
Provisional period adjustments	0	0
Amortization	(218)	0
Balance at end of period	$ 14,142	$ 0

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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