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Note 4 - Business Combinations (Details Textual) - USD ($) $ in Thousands		3 Months Ended		11 Months Ended
	Jan. 22, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2021
Payments to Acquire Businesses, Net of Cash Acquired, Total		$ 127,709	$ (0)
Acquired 3D Hubs [Member]
Business Combination, Consideration Transferred, Total	$ 294,418
Payments to Acquire Businesses, Net of Cash Acquired, Total	$ 127,709
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)	863,995
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 166,709
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	52,800
Payments to Acquire Businesses, Gross	134,143
Business Combination, Contingent Consideration, Liability, Total	$ 10,300
Acquired 3D Hubs [Member] | Forecast [Member] | Maximum [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)				143,983
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				$ 27,800
Payments to Acquire Businesses, Gross				$ 25,000

X

- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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- Definition

Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

+ References

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- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

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Amount of liability recognized arising from contingent consideration in a business combination.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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