XML 71 R54.htm IDEA: XBRL DOCUMENT v3.19.1
Concentrations (Details) - Customers
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Sales Revenue, Goods, Net [Member]    
Concentration Risk [Line Items]    
Number Of Customers With Benchmark Contribution Of More Than 10% 0 0
Concentration Risk, Percentage 10.00% 10.00%
Accounts Receivable [Member]    
Concentration Risk [Line Items]    
Number Of Customers With Benchmark Contribution Of More Than 10% 0 0
Concentration Risk, Percentage 10.00% 10.00%