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Nature of Operations (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)
Schedule of Equity Method Investments [Line Items]
Ownership percentage	47.87%
Cash paid to settle obligation	$ 50
Shares issued to repay obligation	375
Printar [Member]
Schedule of Equity Method Investments [Line Items]
Conditional obligation	2,000
Total repayment	425
Cash paid to settle obligation	50
Shares issued to repay obligation	$ 375

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Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The cash outflow for the payment of a long-term borrowing made from a related party where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Payments for Advances from Affiliates.

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