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Concentrations - Additional Information (Detail)			3 Months Ended		9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Accounts Receivable | Customer Concentration Risk | Three Customers
Concentration Risk [Line Items]
Percentage of Total Revenue	80.00%
Accounts Receivable | Customer Concentration Risk | Four Customers
Concentration Risk [Line Items]
Percentage of Total Revenue		89.00%
Revenue | Customer Concentration Risk | Three Customers
Concentration Risk [Line Items]
Percentage of Total Revenue			82.00%		74.00%
Revenue | Customer Concentration Risk | Four Customers
Concentration Risk [Line Items]
Percentage of Total Revenue				82.00%		55.00%
Accounts Payables | Supplier Concentration Risk | Three Vendors
Concentration Risk [Line Items]
Percentage of Total Revenue	37.00%
Accounts Payables | Supplier Concentration Risk | One Vendor
Concentration Risk [Line Items]
Percentage of Total Revenue		16.00%
Cost of Goods Sold | Supplier Concentration Risk | Two Supplier
Concentration Risk [Line Items]
Percentage of Total Revenue			57.00%		53.00%	44.00%
Cost of Goods Sold | Supplier Concentration Risk | Three Suppliers
Concentration Risk [Line Items]
Percentage of Total Revenue				58.00%

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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

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