Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Summary of Significant Accounting Policies (Details)

v3.19.1
Basis of Presentation and Summary of Significant Accounting Policies (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
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%