Customer Concentration (Details) - Customers	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Net Sales [Member]
Customer Concentration (Textual)
Concentration risk, percentage	24.40%	25.60%
Number of customers	2	1
Net Sales [Member] | Customer One [Member]
Customer Concentration (Textual)
Concentration risk, percentage	14.00%
Net Sales [Member] | Customer Two [Member]
Customer Concentration (Textual)
Concentration risk, percentage	10.40%
Trade accounts receivable [Member]
Customer Concentration (Textual)
Concentration risk, percentage	55.30%		56.80%
Number of customers	3		3
Trade accounts receivable [Member] | Customer One [Member]
Customer Concentration (Textual)
Concentration risk, percentage	27.90%		28.00%
Trade accounts receivable [Member] | Customer Two [Member]
Customer Concentration (Textual)
Concentration risk, percentage	14.80%		15.30%
Trade accounts receivable [Member] | Customer Three [Member]
Customer Concentration (Textual)
Concentration risk, percentage	12.60%		13.50%