Note 4 - Goodwill and Other Intangible Assets (Details Textual) € in Millions, $ in Millions		3 Months Ended	12 Months Ended
Jan. 22, 2021 USD ($)	Jan. 22, 2021 EUR (€)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax			$ 1.5		$ 1.7
Amortization of Intangible Assets			$ 1.5	$ 1.5
Acquired 3D Hubs [Member] \| UNITED STATES
Finite-Lived Intangible Assets Acquired	$ 16.6	€ 11.6

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

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Amount before tax, after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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