Discontinued Operations (Income Statements) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Photovoltaics Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	$ 0	$ 12,614
Cost of revenue	0	8,245
Gross profit	0	4,369
Operating (income) expense	(787)	2,703
Other income	0	779
Gain on sale of discontinued operations	0	87,022
Income from discontinued operations before income tax	787	89,467
Income tax expense (benefit)	(9)	(30,203)
Income from discontinued operations, net of tax	778	59,264
Digital Products Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	0	11,815
Cost of revenue	(49)	9,112
Gross profit	49	2,703
Operating (income) expense	(298)	2,712
Income from discontinued operations before income tax	347	(9)
Income tax expense (benefit)	(4)	3
Income from discontinued operations, net of tax	$ 343	$ (6)