Discontinued Operations - Results of Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of tax	$ 78	$ 64	$ (122)	$ (4,190)
Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue	0	280	0	280
Home construction and land sales expenses	(56)	105	252	4,056
Gross profit	56	175	(252)	(3,776)
General and administrative expenses	(55)	114	(53)	418
Operating income (loss)	111	61	(199)	(4,194)
Other (expense) income, net	0	1	0	1
Income (loss) from discontinued operations before income taxes	111	62	(199)	(4,193)
Provision for (benefit from) income taxes	33	(2)	(77)	(3)
Income (loss) from discontinued operations, net of tax	$ 78	64	$ (122)	$ (4,190)
Litigation settlement cost		$ 3,700