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Related Party Transactions - Additional Information (Detail) - USD ($)	Jul. 03, 2017	Mar. 30, 2016	Aug. 31, 2017	Feb. 28, 2017
Z-Axis Inc
Related Party Transaction [Line Items]
Notes receivable assigned with recourse		$ 912,000	$ 679,000	$ 765,000
Notes repurchase right, percentage of outstanding principle balance		80.00%
Secured borrowing		$ 900,000
Effective interest rate		9.00%
Payment period		56 months
Date of first required payment		Apr. 16, 2016
Honeyhill Properties LLC [Member]
Related Party Transaction [Line Items]
Purchase of related party	$ 1,500,000
Investment towards cost method investments	$ 500,000