Note 10 - Subsequent Events	3 Months Ended
Mar. 31, 2014
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Note 10 – Subsequent Events In April 2014, the Company acquired 100 percent of the shares of FineLine Prototyping, Inc., a leading provider of additive manufacturing services. Total consideration paid for this acquisition was $37 million, $34 million of which was paid in cash at the time of closing and up to an additional $3 million in cash based on the achievement of certain milestones related to the integration of FineLine’s and the Company’s businesses. The acquisition is not significant to the Company’s operating results.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

No definition available.

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