Summary of Significant Accounting Policies - Property and Equipment (Details)	12 Months Ended
	Jun. 30, 2017
Machinery and equipment
Property and Equipment
Period over which property and equipment are depreciated	5 years
Furniture and fixtures
Property and Equipment
Period over which property and equipment are depreciated	4 years
Computer and office equipment
Property and Equipment
Period over which property and equipment are depreciated	3 years
Computer Software
Property and Equipment
Period over which property and equipment are depreciated	3 years