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Revenue Recognition (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) Obligation Customer Distributor Licensee	Mar. 31, 2017 USD ($) Customer
Concentration Risk [Line Items]
Number of performance obligation | Obligation	1
Payment terms with customers	The Company’s contracts do not involve financing elements as payment terms with customers are less than one year.
Concentration risk percentage	100.00%	100.00%
Development revenue recognized | $	$ 917	$ 1,018
Customer Concentration Risk [Member] | Revenue Recognized [Member]
Concentration Risk [Line Items]
Number of customers	4	3
Concentration risk percentage	66.00%	51.00%
Customer Concentration Risk [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Number of customers	3	2
Concentration risk percentage	75.00%	53.00%
Number of distributors | Distributor	2
Number of licensee | Licensee	1

X

- Definition

Aggregate revenue earned during the period from recognition of related party deferred revenue, non-product related activities and revenue earned during the period from non-repayable sum of money awarded to an entity to carry out a specific purpose as provided in grant agreements.

+ References

No definition available.

+ Details

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X

- Definition

Represents the number of customers included in each grouping.

+ References

No definition available.

+ Details

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X

- Definition

Represents the number of distributors included in each grouping.

+ References

No definition available.

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- Definition

Number of licensee.

+ References

No definition available.

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- Definition

Number of performance obligation.

+ References

No definition available.

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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.

+ References

No definition available.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13537-108611

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- Definition

Description of payment terms in contract with customer. Includes, but is not limited to, timing of payment, existence of financing component, variability of consideration and constraint on variable consideration.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130554-203045

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- Details

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