Note 9 - Receivables, Net - Schedule of Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Gross receivables	$ 528,406	$ 465,666	$ 545,293
Less: allowance for credit losses	1,129	1,078	1,379
Total net receivables	527,277	464,588	543,914
Completed and in Progress [Member]
Billed	221,084	236,053	187,188
Unbilled	160,336	126,371	189,332
Gross receivables	381,420	362,424	376,520
Material Sales [Member]
Gross receivables	75,634	43,746	64,017
Other Business Products and Services [Member]
Gross receivables	$ 71,352	$ 59,496	$ 104,756

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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