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Inventories (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Long Term Inventory [Line Items]
Finished products, Systems at customer locations	$ 4,612	$ 4,532
Long-term inventory	1,979	1,476
Spare parts included in noncurrent inventory	1,326	1,401
Obsolescence provision	1,041	205
Provision for damages, obsolete, excess and slow-moving inventory	133	283
Amount of inventory write-down	$ 1,174	$ 488
Minimum [Member]
Long Term Inventory [Line Items]
Customer support, term	7 years
Maximum [Member]
Long Term Inventory [Line Items]
Customer support, term	10 years

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- Definition

Long Term Inventory Line Items.

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Period Of Customer Support In Years.

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- Definition

Provision for damages, obsolete, excess and slow-moving inventory

+ References

No definition available.

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- Definition

Inventories not expected to be converted to cash, sold or exchanged within the normal operating cycle.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.6(d))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount of valuation reserve for inventory.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
-Section S99
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-Topic 210
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Name Accounting Standards Codification
-Topic 235
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- Definition

Charge to cost of goods sold that represents the reduction of the carrying amount of inventory, generally attributable to obsolescence or market conditions.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Gross amount of components of assembled products that can be sold directly or indirectly through sales of assembled products.

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Gross amount of merchandise or materials to which the entity holds the title, but physically at another entity's facilities (for example, but not limited to, work in process may be temporarily at the site of a subcontractor).

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