Note 6 - Goodwill and Other Intangible Assets - Carrying Amount of Goodwill and Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Goodwill at December 31, 2019			$ 84,002
Balance, intangibles			7,728
Measurement period adjustments, goodwill			1,046
Measurement period adjustments, intangibles			0
Amortization, intangibles	$ (417)	$ (458)	(844)	$ (513)
Impairment, goodwill			0
Impairment, intangibles			0
Goodwill at June 30, 2020	85,048	$ 84,633	85,048	$ 84,633
Balance, intangibles	$ 6,884		$ 6,884

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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Amount of increase (decrease) to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for purchase accounting adjustments.

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