Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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

Goodwill and Intangible Assets - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Goodwill [Line Items]
Amortization of intangible assets		$ 1,497,000	$ 1,648,000
Goodwill impairment		0	8,294,000
Cleveland Reporting Unit
Goodwill [Line Items]
Goodwill impairment		$ 0	$ 0
Maniago Reporting Unit
Goodwill [Line Items]
Goodwill impairment	$ 8,294,000