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Summary of Significant Accounting Policies (Schedule of Accounts Receivable and Concentration of Credit Risk) (Details) - Sales Revenue, Net [Member]	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Ford Motor Company [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Concentration risk percentage	11.00%	12.00%	14.00%
Volvo [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Concentration risk percentage	8.00%	8.00%	6.00%

X

- 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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

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+ References

No definition available.

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