Note 5 - Business Combinations - Allocation of Purchase Price for the Acquisition of Rapid (Details) - USD ($) $ in Thousands		12 Months Ended
	Jan. 22, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Assets acquired:
Goodwill		$ 273,991	$ 400,610	$ 128,752
Liabilities assumed:
Net cash consideration		$ (0)	$ 127,413	$ (0)
Acquired 3D Hubs [Member]
Assets acquired:
Current assets	$ 2,497
Intangible assets	30,770
Goodwill	280,925
Other long-term assets	1,139
Total assets acquired	315,331
Liabilities assumed:
Current contingent consideration	7,093
Current liabilities	5,666
Long-term contingent consideration	6,507
Long-term deferred tax liabilities	1,688
Other long-term liabilities	255
Total liabilities assumed	21,209
Net assets acquired	294,122
Payments to Acquire Businesses, Gross	133,847
Cash acquired	(6,434)
Net cash consideration	127,413
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	166,709
Total purchase consideration	$ 294,122