Basis of Presentation and Summary of Significant Accounting Policies (Details) |
3 Months Ended | 12 Months Ended | |
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Mar. 31, 2019 |
Mar. 31, 2018 |
Dec. 31, 2018 |
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Accounts Receivable [Member] | Customer - 1 [Member] | |||
Concentration risk, percentage | 10.00% | 17.00% | |
Accounts Receivable [Member] | Customer - 2 [Member] | |||
Concentration risk, percentage | 10.00% | 12.00% | |
Sales [Member] | Customer - 1 [Member] | |||
Concentration risk, percentage | 15.00% | 13.00% |
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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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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