Discontinued Operations (Income Statements) (Details) - Discontinued Operations, Disposed of by Sale [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Photovoltaics Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	$ 0	$ 0	$ 0	$ 12,614
Cost of revenue	0	0	0	8,245
Gross profit	0	0	0	4,369
Operating (income) expense	(17)	(374)	(838)	2,057
Other income	0	0	0	779
Gain on sale of discontinued operations	0	(64)	0	86,958
Income from discontinued operations before income tax benefit (expense)	17	310	838	90,049
Income tax benefit (expense)	23	1,105	(5)	(28,821)
Income from discontinued operations, net of tax	40	1,415	833	61,228
Digital Products Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	0	89	0	11,944
Cost of revenue	0	27	(494)	9,138
Gross profit	0	62	494	2,806
Operating (income) expense	45	(11)	(285)	3,147
Other income	0	0	3,804	0
Gain on sale of discontinued operations	0		0	1,994
Income from discontinued operations before income tax benefit (expense)	(45)	73	4,583	1,653
Income tax benefit (expense)	128	488	(28)	2,361
Income from discontinued operations, net of tax	$ 83	$ 561	$ 4,555	$ 4,014