Commitments and Contingencies - Additional Information (Detail)		6 Months Ended
	Feb. 29, 2008 Time	Jul. 01, 2018 USD ($)
Commitments And Contingencies [Line Items]
Lease expiration date	Feb. 28, 2019
Number of times lease can be renewed | Time	6
Lease renewal period	5 years
Lease amendment description		In May 2017, the Company entered into an amendment to the lease to, among other things, extend the primary lease term, and consequently the construction deadline, to a date between February 29, 2020 and June 30, 2020
Non refundable payment		$ 40,000
Purchase the premises		$ 4,500,000
Due diligence expiration date		Mar. 02, 2018
Escrow deposit to purchase price of the property		$ 300,000
Sale agreement termination, date		November 27, 2020
Additional Amendment Lease Agreement [Member]
Commitments And Contingencies [Line Items]
Lease amendment description		In November 2017, the Company entered into an additional amendment to the lease concurrently with entering into a purchase and sale agreement.