Summary of Significant Accounting Policies (Property) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended		9 Months Ended
	Sep. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Sep. 30, 2015	Jun. 30, 2015	Sep. 30, 2015	Sep. 30, 2014
Property and Equipment
Estimated useful life						P3Y
Net loss	$ 17,630		$ (3,724)			$ 47,315	$ 6,406
Machinery and equipment | Change to estimated useful life
Property and Equipment
Estimated useful life		P3Y		P5Y
Net loss	$ 600					$ 1,200
Basic and diluted loss per share (in dollars per share)	$ 0.01	$ (0.01)			$ (0.07)	$ (0.07)