Related Party Transactions - Additional Information (Detail) - Marcar [Member] - USD ($)		12 Months Ended
Oct. 05, 2017	Sep. 30, 2018
Related Party Transaction [Line Items]
Lease payments to Marcar		$ 0
Leased vehicles and forklifts under contract [Member]
Related Party Transaction [Line Items]
Purchase of leased vehicles under contract	$ 320,000

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

No definition available.

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration