Significant Customers (Details) - customers	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Significant Customers (Textual)
Number of customers	3	3	4	3
Trade Receivables [Member]
Significant Customers (Textual)
Concentration risk percentage			10.00%		10.00%
Customer [Member]
Significant Customers (Textual)
Concentration risk percentage			10.00%	10.00%
Revenue [Member] | Customer One [Member]
Significant Customers (Textual)
Concentration risk percentage	17.00%	39.00%	17.00%	37.00%
Revenue [Member] | Customer Two [Member]
Significant Customers (Textual)
Concentration risk percentage	12.00%	18.00%	13.00%	14.00%
Revenue [Member] | Customer Three [Member]
Significant Customers (Textual)
Concentration risk percentage	10.00%	12.00%	11.00%	10.00%
Revenue [Member] | Customer Four [Member]
Significant Customers (Textual)
Concentration risk percentage			11.00%
Accounts Receivable [Member] | Customer [Member]
Significant Customers (Textual)
Concentration risk percentage			65.00%		75.00%