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Summary of Significant Accounting Policies (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Property, Plant and Equipment [Line Items]
Net license revenues	$ 1,213	$ 1,597	$ 4,622	$ 5,681
Percentage of net license revenues	100.00%	100.00%	100.00%	100.00%
Net revenues	$ 1,310	$ 1,923	$ 5,032	$ 6,174
Automotive [Member]
Property, Plant and Equipment [Line Items]
Net license revenues	$ 400	$ 248	$ 1,336	$ 1,151
Percentage of net license revenues	31.00%	13.00%	27.00%	19.00%
Consumer electronics [Member]
Property, Plant and Equipment [Line Items]
Net license revenues	$ 813	$ 1,349	$ 3,286	$ 4,530
Percentage of net license revenues	62.00%	70.00%	65.00%	73.00%
Sensor Modules [Member]
Property, Plant and Equipment [Line Items]
Percentage of net license revenues	7.00%	2.00%	7.00%	3.00%
Net revenues	$ 95	$ 39	$ 368	$ 176
Non Recurring Engineering [Member]
Property, Plant and Equipment [Line Items]
Percentage of net license revenues	0.00%	15.00%	1.00%	5.00%
Net revenues	$ 2	$ 287	$ 42	$ 317

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Percentage of license revenues.

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Topic 280
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-Section 50
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1))
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