Summary of Significant Accounting Policies - Additional Information (Detail)				1 Months Ended	12 Months Ended
	Dec. 21, 2015 USD ($)	Jul. 01, 2015 USD ($)	Jun. 30, 2015 USD ($) shares	Jul. 31, 2015 shares	Dec. 31, 2015 USD ($) Segment bank
Schedule Of Significant Accounting Policies [Line Items]
Number of commercial banks | bank					2
Number of operating segments | Segment					1
Raw materials					$ 106,000
Work-in-process					398,000
Finished goods					$ 46,000
Aggregate cash payments			$ 450,000
Shares issued during period | shares			40,000	10,000
Initial payment under purchase agreement		$ 150,000
Committed payment amount			$ 100,000
Payment period one					6 months
Payment period two					12 months
Payment period three					18 months
Payments for royalties	$ 100,000
Goodwill impairment loss					$ 0
Government grant revenue					$ 219,917
Minimum [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment					3 years
Estimated useful life					5 years
Maximum [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment					5 years
Estimated useful life					12 years
Accrued Compensation and Other Current Liabilities [Member]
Schedule Of Significant Accounting Policies [Line Items]
Remaining payable amount					$ 200,000