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

Related Party Transactions - Additional Information (Detail) - Marcar [Member] - USD ($)		12 Months Ended
	Oct. 05, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
Related Party Transaction [Line Items]
Lease payments to Marcar		$ 125,000	$ 147,000	$ 136,000
Subsequent Event [Member] \| Leased Vehicles Under Contract [Member]
Related Party Transaction [Line Items]
Purchase of leased vehicles under contract	$ 320,000