Property and Equipment - Summary of Property and Equipment (Detail) - USD ($)	Jun. 30, 2018	Sep. 30, 2017
Property Plant And Equipment [Abstract]
Computers, office equipment and furniture	$ 600,334	$ 600,334
Research equipment	10,345,664	9,660,960
Software	148,829	132,078
Leasehold improvements	12,208,380	12,208,380
Total gross fixed assets	23,303,207	22,601,752
Less: Accumulated depreciation and amortization	(9,273,968)	(7,088,733)
Property and equipment, net	$ 14,029,239	$ 15,513,019

Research equipment.

No definition available.

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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- Definition

Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

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- Definition

Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

+ References

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Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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