Note 4 - Revisions in Estimates (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Gross Profit, Total	$ 78,480	$ 98,232	$ 128,255	$ 151,944
Revisions in Estimates [Member]
Gross Profit, Total			$ 5,000

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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+ Details