Significant Customers (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Net sales	$ 2,439	$ 3,040	$ 9,033	$ 5,716
Allowance for doubtful accounts	$ 0		$ 0		$ 0
Sales Revenue, Net [Member] | Third Party Contract Manufacturing Customer One [Member]
Concentration risk, percentage	38.90%	61.10%	39.80%	50.70%
Sales Revenue, Net [Member] | Third Party Contract Manufacturing Customer Two [Member]
Concentration risk, percentage	30.40%	16.50%	39.00%	21.50%
Sales Revenue, Net [Member] | Third Party Contract Manufacturing Customer Three [Member]
Concentration risk, percentage	15.20%	10.60%
Accounts Receivable [Member] | One Customer [Member]
Concentration risk, percentage			59.00%		84.00%
Accounts Receivable [Member] | Two Customer [Member]
Concentration risk, percentage			15.00%