Discontinued Operations - Results of Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss from discontinued operations, net of tax	$ (58)	$ (11)
Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue	0	55
Home construction and land sales expenses	1	33
Gross (loss) profit	(1)	22
General and administrative expenses	74	33
Operating loss	(75)	(11)
Equity in loss of unconsolidated entities	0	(1)
Other expense, net	0	(1)
Loss from discontinued operations before income taxes	(75)	(13)
Benefit from income taxes	(17)	(2)
Loss from discontinued operations, net of tax	$ (58)	$ (11)