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Related parties (Details)	9 Months Ended		12 Months Ended
	Sep. 30, 2015 USD ($) Device	Sep. 30, 2014 USD ($)	Dec. 31, 2013	Jun. 30, 2013 USD ($)
Company Affiliated with Investors [Member] | Related Party Transaction, Contract Manufacturing Agreement [Member]
Related Party Transaction [Line Items]
Payments made to affiliated vendor for services rendered	$ 200,000	$ 11,900,000
Chief Executive Officer (CEO) [Member] | Related Party Transaction, Chartered Aircraft Expenses [Member]
Related Party Transaction [Line Items]
Payments to related parties	900,000	$ 314,000
Immediate Family Member of Member of the Board [Member]
Related Party Transaction [Line Items]
Naming rights agreement, period			3 years
Payments to be made to related party for naming rights	500,000
Aggregate payments to related party for naming rights	$ 400,000
Number of devices provided to related party at no cost | Device	100
Executive Officer [Member] | Related Party Transaction, Demand Payment Loan [Member]
Related Party Transaction [Line Items]
Loan amount to executive officer pursuant to demand payment loan				$ 200,000

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Reference 1: http://www.xbrl.org/2003/role/presentationRef



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-Name Accounting Standards Codification



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