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Note 12 - Segment Reporting - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue	$ 123,048	$ 106,575	$ 239,174	$ 221,683
Injection Molding (Protomold) [Member]
Revenue	58,168	57,894	114,527	112,670
CNC Machining (Firstcut) [Member]
Revenue	41,592	28,760	78,295	66,645
3D Printing (Fineline) [Member]
Revenue	18,170	14,236	35,405	30,184
Sheet Metal [Member]
Revenue	4,717	4,669	9,936	10,318
Other Products [Member]
Revenue	$ 401	$ 1,016	$ 1,011	$ 1,866

X

- Definition

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

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