For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
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Geographic Information (External Revenue and Long-Lived Assets by Geographic Region) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 18,947	$ 22,933	$ 59,413	$ 69,637
Long-Lived Assets	3,295		3,295		$ 4,050
Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	2,331		2,331		2,808
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	9,207	10,369	30,164	34,233
Americas (Excluding the U.S.) [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	1,878	1,297	5,833	5,917
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	3,125	5,202	10,573	14,731
Long-Lived Assets	950		950		1,223
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	4,737	$ 6,065	12,843	$ 14,756
Long-Lived Assets	$ 14		$ 14		$ 19
Revenue [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration percentage	100.00%	100.00%	100.00%	100.00%
Revenue [Member] \| United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration percentage	49.00%	45.00%	51.00%	49.00%
Revenue [Member] \| Americas (Excluding the U.S.) [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration percentage	10.00%	6.00%	10.00%	9.00%
Revenue [Member] \| Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration percentage	16.00%	23.00%	18.00%	21.00%
Revenue [Member] \| Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration percentage	25.00%	26.00%	21.00%	21.00%