XML 76 R66.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Concentration of Risk Customers Constituting Trade Receivable in Excess of 10% (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Concentration Risk [Line Items]    
Customers Greater than 10% Trade Receivable 4 3
Document Period End Date Dec. 31, 2019