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Note 5 - Revisions in Estimates (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Gross Profit, Total	$ 88,343	$ 46,758	$ 112,142	$ 47,896
Estimated Cost Recovery of Customer Affirmative Claims and Back Charges [Member]
Gross Profit, Total					$ 5,000	$ 5,000

X

- Definition

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

+ References

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