Investments in Unconsolidated Entities - Unconsolidated Entities (Details) - USD ($)	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Equity Method Investments and Joint Ventures [Abstract]
Investment in unconsolidated entities	$ 3,962,000	$ 4,035,000
Total equity of unconsolidated entities	9,969,000	10,113,000
Total outstanding borrowings of unconsolidated entities	12,658,000	12,266,000
Equity in income of unconsolidated entities	404,000	375,000	$ 371,000
Impairment of unconsolidated entity investment	0	(341,000)	0
Income (Loss) from Equity Method Investments	$ 404,000	$ 34,000	$ 371,000